A subway entrance light with anti-fog function

Abstract

This utility model relates to the field of subway entrance light technology and discloses a subway entrance light with anti-fog function, including a base, a lamp core is provided at the center of the bottom end face of the base, and an anti-fog lamp cover assembly is provided at the bottom of the base. The top side of the anti-fog lamp cover assembly is connected to the bottom of the base by an adapter screw, and the lamp core is inside the anti-fog lamp cover assembly, which is used to achieve the function of sealing and preventing fog from the lamp core. The internal structure of the subway entrance light is simple. Through the triple protection system of physical barrier, active heating and anti-fog coating, it can quickly and effectively eliminate fog, ensure clear and bright light, and improve travel safety and convenience.

Description

Technical Field

[0001] This utility model relates to the field of subway entrance light technology, specifically a subway entrance light with anti-fog function. Background Technology

[0002] In the subway operating environment, entrance lights serve as important directional signs, and their proper functioning is crucial to passengers' travel experience and safety.

[0003] However, the environment in subway tunnels and platforms is complex, with problems such as high humidity and large temperature differences. For example, in humid tunnels, water vapor in the air easily condenses into fog on the surface of the entrance lights. When train operation brings changes in airflow or there are large temperature differences between day and night, condensation is also likely to occur inside the entrance lights, causing the lights to be blocked by fog, affecting the lighting effect and the clarity of information display, making it difficult for passengers to identify lines and stations, and may even cause safety hazards. Existing subway entrance lights have many shortcomings in terms of fog prevention. Some lamps have simple sealing structures that cannot effectively prevent water vapor from entering, causing fog to accumulate inside the lamp. Even if some lamps use heating anti-fog technology, they lack multiple protection measures, resulting in unstable anti-fog effects, leading to the failure of the anti-fog coating or a decrease in light transmittance. Therefore, we propose a subway entrance light with anti-fog function. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a subway entrance light with anti-fog function, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a subway entrance light with anti-fog function, comprising:

[0006] The base has a lamp wick at the center of its bottom end face;

[0007] A fog-proof light cover assembly is disposed at the bottom of the base. The top side of the fog-proof light cover assembly is connected to the bottom of the base by an adapter screw. The inside of the fog-proof light cover assembly is the lamp core, which is used to achieve the function of sealing and preventing fogging of the lamp core.

[0008] Preferably, the base body is a rectangular plate, and a set of sealing ring teeth is provided on the bottom of the base corresponding to the outer side of the lamp core in a radially equidistant manner. Two sealing grooves are provided on the outer side of the sealing ring teeth. The sealing grooves are concentric with the sealing ring teeth. Four connecting holes are provided on the outer side of the sealing grooves in a ring array.

[0009] Preferably, the top of the base is provided with a set of heat dissipation fins that are evenly distributed, and the heat dissipation fins have a wave-like structure.

[0010] Preferably, the fog-proof lamp cover assembly includes a rubber sealing ring, a sealant, a heating film, and a lamp cover. The main body of the fog-proof lamp cover assembly is the lamp cover, the lamp cover is provided with a heating film inside, the top of the lamp cover is provided with a sealant, and the sealant cooperates with the top shaft end of the heating film. The top of the lamp cover is provided with two concentrically distributed rubber sealing rings.

[0011] Preferably, the top of the lampshade has a circular opening structure, and a set of radially equidistant sealing ring grooves are provided on the side of the opening on the top of the lampshade. The sealing ring grooves are connected to the sealing ring teeth. An inner ring cavity is provided inside the lampshade, and a sealing groove three is provided at the top shaft end of the inner ring cavity. The sealing groove three is located outside the sealing ring groove, and two sealing grooves two are provided outside the sealing groove three. The sealing grooves two and the sealing groove one form a complete hollow ring.

[0012] Preferably, the top cylindrical sidewall of the lampshade is provided with four connecting blocks arranged in a ring array. The connecting blocks are connected to the connecting holes by matching screws. The inside of the lampshade is a thermally conductive lens substrate, and both the inner and outer sides of the thermally conductive lens substrate are coated with a nano anti-fog coating.

[0013] Preferably, the rubber sealing ring is placed inside the complete hollow ring formed by the sealing groove 2 and the sealing groove 1.

[0014] Preferably, the heating film is in the shape of a hollow cylinder, and the heating film is placed inside the inner ring cavity, while the sealant is placed inside the sealing groove.

[0015] Compared with the prior art, this utility model provides a subway entrance light with anti-fog function, which has the following beneficial effects:

[0016] This subway entrance light with anti-fog function boasts excellent anti-fog performance and durability. Through a multi-layered sealing design using rubber sealing rings, sealant, and a curved sealing structure, it prevents moisture from entering the lamp housing at the source. Combined with a heating film to increase the surface temperature of the lamp body and the super-hydrophilic properties of the nano-anti-fog coating, it forms a triple protection system of physical barrier, active heating, and anti-fog coating. This system quickly and effectively eliminates fog, ensuring clear and bright lighting, allowing passengers to clearly identify subway line information and station names, thus improving travel safety and convenience. Simultaneously, the heat dissipation fins effectively dissipate the heat generated by the lamp core, reducing the risk of component aging and damage due to high temperatures, extending the lamp's lifespan. The self-cleaning function of the nano-anti-fog coating reduces dust adhesion, lowering the frequency of cleaning and maintenance, thereby reducing subway operation and maintenance costs. It combines practicality and economy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the subway entrance light with anti-fog function according to this utility model;

[0018] Figure 2This is a cross-sectional schematic diagram of the subway entrance light with anti-fog function according to this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the top of the base of this utility model;

[0021] Figure 5 This is a cross-sectional view of the lampshade of this utility model;

[0022] Figure 6 This is a schematic cross-sectional view of the layered structure of the lampshade of this utility model;

[0023] Figure 7 for Figure 2 A magnified view of a portion of point A in the middle.

[0024] In the diagram: 1. Base; 2. Rubber sealing ring; 3. Sealant; 4. Heating film; 5. Lampshade; 6. Lamp wick; 7. Connecting hole; 8. Sealing groove one; 9. Sealing ring teeth; 10. Heat dissipation fins; 11. Connecting block; 12. Sealing groove two; 13. Inner ring cavity; 14. Sealing groove three; 15. Sealing ring groove; 16. Thermally conductive lens substrate; 17. Nano anti-fog coating. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-7 A subway entrance light with anti-fog function includes:

[0027] Base 1, with a lamp wick 6 at the center of the bottom end face of base 1;

[0028] The fog light cover assembly is located at the bottom of the base 1. The top side of the fog light cover assembly is connected to the bottom of the base 1 by an adapter screw. The inside of the fog light cover assembly is the lamp core 6, which is used to seal and prevent fogging of the lamp core 6.

[0029] Furthermore, the base 1 is a rectangular plate, and a set of radially equidistant sealing ring teeth 9 is provided on the bottom of the base 1 corresponding to the outer side of the lamp core 6. Two sealing grooves 8 are provided on the outer side of the sealing ring teeth 9. The sealing grooves 8 are concentric with the sealing ring teeth 9. Four connecting holes 7 are provided on the outer side of the sealing grooves 8 in a ring array.

[0030] Furthermore, the base 1 has a set of heat dissipation fins 10 that are evenly distributed on the top, and the heat dissipation fins 10 have a wave-shaped structure. When the lamp core 6 is working, its body and back assembly will generate heat, and the heat dissipation fins 10 can efficiently dissipate the heat generated, ensuring the temperature of the lamp core 6 and the back assembly and improving the overall service life.

[0031] Furthermore, the anti-fog light cover assembly includes a rubber sealing ring 2, a sealant 3, a heating film 4, and a light cover 5. The main body of the anti-fog light cover assembly is the light cover 5, inside which the heating film 4 is located. The top of the light cover 5 has a sealant 3, which mates with the top shaft end of the heating film 4. The top of the light cover 5 has two concentrically distributed rubber sealing rings 2. During installation, the heating film 4 is first placed in the inner ring cavity 13, the power is turned on, and the sealant 3 is filled into the sealing groove 14 at the top of the inner ring cavity 13 to prevent moisture and fog from corroding and damaging the heating film 4. Two rubber sealing rings 2 are placed inside the sealing groove 12 at the top of the lamp cover 5. The sealing ring groove 15 is aligned with the sealing ring teeth 9, and an appropriate amount of oil is injected. After the lamp cover 5 is connected to the bottom of the base 1 by the matching screws, the sealing ring groove 15 and the sealing ring teeth 9 form a curved seal, which serves as the second layer of sealing. The two rubber sealing rings 2 placed inside the complete hollow ring formed by the sealing groove 12 and the sealing groove 8 serve as the first layer of sealing, effectively preventing the entry of water vapor and preventing fogging inside the lamp cover 5. The heating film 4 can continuously heat the lamp cover 5 to prevent fogging caused by the temperature difference between the inside and outside.

[0032] Furthermore, the top of the lampshade 5 has a circular opening structure, and a set of radially equidistant sealing ring grooves 15 are provided on the side of the opening at the top of the lampshade 5. The sealing ring grooves 15 are connected to the sealing ring teeth 9. An inner ring cavity 13 is provided inside the lampshade 5. A sealing groove 3 14 is provided at the top shaft end of the inner ring cavity 13. The sealing groove 3 14 is located outside the sealing ring groove 15. Two sealing grooves 2 12 are provided outside the sealing groove 3 14. The sealing grooves 2 12 and the sealing groove 1 8 form a complete hollow ring.

[0033] Furthermore, the top cylindrical sidewall of the lampshade 5 is provided with four connecting blocks 11 arranged in a ring array. The connecting blocks 11 are connected to the connecting holes 7 by matching screws. The interior of the lampshade 5 is a thermally conductive lens substrate 16. Both the inner and outer sides of the thermally conductive lens substrate 16 are coated with a nano anti-fog coating 17. The nano anti-fog coating 17 has super hydrophilic properties, which allows water vapor to quickly spread into a uniform water film when it comes into contact with the coating surface, instead of forming water droplets, thereby avoiding the generation of fog. At the same time, the nano anti-fog coating 17 also has a self-cleaning function, which can reduce the adhesion of dust and dirt and further improve the light transmittance.

[0034] Furthermore, the rubber sealing ring 2 is placed inside the complete hollow ring formed by the sealing groove 2 12 and the sealing groove 1 8, and the rubber sealing ring 2 group plays the first sealing role.

[0035] Furthermore, the heating film 4 is in the shape of a hollow cylinder, and the heating film 4 is placed inside the inner ring cavity 13, while the sealant 3 is placed inside the sealing groove 14. The heating film 4 can effectively heat the heat-conducting lens substrate 16, causing the surface temperature of the lampshade 5 to rise above the dew point temperature of the surrounding environment, thereby preventing water vapor from condensing into fog on the lamp body surface. It can quickly and effectively remove fog and keep the light clear and bright.

[0036] Structural Description:

[0037] Base 1: Base 1 is a rectangular plate and is the basic support structure for the subway entrance light. The bottom end face center is provided with a lamp core 6, and the bottom outer side has a sealing ring tooth 9 and a sealing groove 8. The heat dissipation fins 10 on the top can dissipate heat efficiently.

[0038] Rubber sealing ring 2: Rubber sealing ring 2 is placed in the ring formed by sealing groove 2 12 and sealing groove 1 8. It is the first sealing structure of the door light. It effectively prevents water vapor from entering the lamp cover 5 by filling the gap through elastic deformation.

[0039] Sealant 3: Sealant 3 is filled in the sealing groove 14 at the top of the inner annular cavity 13 of the lamp cover 5, and cooperates with the top shaft end of the heating film 4 to prevent water vapor and mist from corroding the heating film 4 and ensure its normal operation.

[0040] Heating film 4: The heating film 4 is a hollow cylindrical shape and is installed in the inner annular cavity 13 of the lamp cover 5. When working, it heats the heat-conducting lens substrate 16, increases the surface temperature of the lamp cover 5, and prevents water vapor from condensing into fog.

[0041] Lamp cover 5: The lamp cover 5 is the main body of the anti-fog lamp cover assembly. It has a circular opening at the top, a sealing ring groove 15 and a connecting block 11. The heating film 4 and the heat-conducting lens substrate 16 are housed inside to achieve sealing and protection functions.

[0042] Lamp wick 6: The lamp wick 6 is located at the center of the bottom end face of the base 1. As the core light-emitting component of the door headlight, it provides the light source. Its normal operation is protected by multiple anti-fog structures.

[0043] Connection hole 7: Connection hole 7 is located on the outer side of the sealing groove 8 at the bottom of the base 1, and is arranged in a ring array. It is connected to the top connecting block 11 of the lamp cover 5 by means of an adapter screw to achieve a stable connection between the two.

[0044] Sealing groove 1 8: Sealing groove 1 8 is located at the bottom of the base 1, and is concentrically distributed with the sealing ring teeth 9. It forms a ring with the sealing groove 2 12 of the lamp cover 5, and is used to place the rubber sealing ring 2 to enhance the sealing effect.

[0045] Sealing ring teeth 9: Sealing ring teeth 9 are radially and equidistantly distributed on the outside of the lamp core 6 at the bottom of the base 1. They cooperate with the sealing ring groove 15 of the lamp cover 5. After oil is injected, they form a curved seal, which is the second sealing structure.

[0046] Heat dissipation fins 10: Heat dissipation fins 10 are located on the top of the base 1 and have a wave-shaped structure. They can quickly dissipate the heat generated by the lamp core 6 during operation, maintain the temperature stability of the lamp core and the back components, and extend the life of the lamp.

[0047] Connecting block 11: Connecting block 11 is located on the top cylindrical side wall of lamp cover 5 and is distributed in a ring array. It is connected to the connecting hole 7 of base 1 by adapter screws to ensure that the lamp cover and base are stably assembled.

[0048] Sealing groove 2 12: Sealing groove 2 12 is located on the top of the lampshade 5 and forms a complete hollow ring with sealing groove 1 8 of the base 1. It is used to place the rubber sealing ring 2 and constitute the first sealing line of the door light.

[0049] Inner ring cavity 13: The inner ring cavity 13 is located inside the lamp cover 5 and is used to install the heating film 4. Its top shaft end is provided with a sealing groove 3 14, which can be filled with sealant 3 to protect the heating film 4 from water vapor corrosion.

[0050] Sealing groove 3 14: Sealing groove 3 14 is located at the top shaft end of the inner ring cavity 13, outside the sealing ring groove 15, and is used to fill the sealant 3 to prevent water vapor and mist from damaging the heating film 4.

[0051] Sealing ring groove 15: The sealing ring groove 15 is located on the side of the opening at the top of the lamp cover 5 and corresponds to the sealing ring teeth 9 of the base 1. After oil is injected, it forms a curved seal and plays a second sealing role.

[0052] Thermally conductive lens substrate 16: The thermally conductive lens substrate 16 is located inside the lamp cover 5 and has thermal conductivity. The inner and outer sides are coated with a nano anti-fog coating 17, which is a key component for light transmission and has both anti-fog and light transmission functions.

[0053] Nano anti-fog coating 17: The nano anti-fog coating 17 is sprayed on both the inner and outer sides of the thermally conductive lens substrate 16. It utilizes super-hydrophilic properties to spread water vapor into a film to prevent fogging, and also has a self-cleaning function, improving the light transmittance.

[0054] Working Principle: Install the anti-fog subway entrance light correctly according to the diagram. The anti-fog subway entrance light achieves its anti-fog function through the coordinated operation of multiple structures. A lamp core 6 is located at the center of the bottom end face of the base 1. Sealing ring teeth 9 and sealing groove 1 8 are located on the outer side of the base 1 corresponding to the lamp core 6. A heat dissipation fin 10 is located on the top. The anti-fog lamp cover assembly consists of a rubber sealing ring 2, sealant 3, a heating film 4, and a lamp cover 5. A heat-conducting lens substrate 16 is located inside the lamp cover 5, and its inner and outer sides are coated with a nano-anti-fog coating 17. During installation, first place the heating film 4 in the inner ring cavity 13 of the lamp cover 5, connect the power supply, and fill the sealing groove 3 14 with sealant 3 to prevent moisture and fog from corroding the heating film 4. Place two rubber sealing rings 2 inside the sealing groove 2 12 at the top of the lamp cover 5, align the sealing ring groove 15 at the top of the lamp cover 5 with the sealing ring teeth 9 of the base 1, and inject an appropriate amount of oil. Then, through the fitting... After the screws are connected, the sealing ring groove 15 and the sealing ring teeth 9 form a curved seal, creating a second seal. The two rubber sealing rings 2 placed inside the complete hollow ring formed by the sealing groove 2 12 and the sealing groove 1 8 constitute the first seal. The double seal effectively prevents water vapor from entering the lamp cover 5. When the heating film 4 is working, it heats the heat-conducting lens substrate 16, making the surface temperature of the lamp cover 5 higher than the dew point temperature of the surrounding environment, preventing water vapor from condensing into fog on the lamp body surface. The nano anti-fog coating 17 on both the inner and outer sides of the heat-conducting lens substrate 16 utilizes super-hydrophilic properties to make the water vapor that comes into contact with the coating surface quickly spread into a uniform water film, avoiding the formation of water droplet fog. In addition, the self-cleaning function of the nano anti-fog coating 17 can also reduce the adhesion of dust and dirt, ensuring the light transmittance. Furthermore, the heat dissipation fins 10 on the top of the base 1 can efficiently dissipate the heat generated by the lamp core 6, maintaining the temperature stability of the lamp core 6 and the back assembly.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A subway entrance light with anti-fog function, characterized in that, include: Base (1), wherein a lamp wick (6) is provided at the center of the bottom end face of the base (1); The fog lamp cover assembly is located at the bottom of the base (1). The top side of the fog lamp cover assembly is connected to the bottom of the base (1) by an adapter screw. The inside of the fog lamp cover assembly is the lamp core (6), which is used to seal and prevent fogging of the lamp core (6).

2. A subway entrance light with anti-fog function according to claim 1, characterized in that, The base (1) is a rectangular plate, and a set of sealing ring teeth (9) with radially equidistant distribution is provided on the bottom of the base (1) corresponding to the outer side of the lamp core (6). Two sealing grooves (8) are provided on the outer side of the sealing ring teeth (9). The sealing grooves (8) are concentric with the sealing ring teeth (9), and four connecting holes (7) with a ring array are provided on the outer side of the sealing grooves (8).

3. A subway entrance light with anti-fog function according to claim 2, characterized in that, The base (1) has a set of heat dissipation fins (10) that are evenly distributed on the top, and the heat dissipation fins (10) have a wave-shaped structure.

4. A subway entrance light with anti-fog function according to claim 1, characterized in that, The fog-proof lamp cover assembly includes a rubber sealing ring (2), a sealant (3), a heating film (4), and a lamp cover (5). The main body of the fog-proof lamp cover assembly is the lamp cover (5). The lamp cover (5) is provided with a heating film (4) inside. The top of the lamp cover (5) is provided with a sealant (3), and the sealant (3) is matched with the top shaft end of the heating film (4). The top of the lamp cover (5) is provided with two concentrically distributed rubber sealing rings (2).

5. A subway entrance light with anti-fog function according to claim 4, characterized in that, The top of the lampshade (5) is a circular opening structure, and a set of radially equidistant sealing ring grooves (15) are provided on the side of the opening at the top of the lampshade (5). The sealing ring grooves (15) are connected to the sealing ring teeth (9). An inner ring cavity (13) is provided inside the lampshade (5). A sealing groove three (14) is provided at the top shaft end of the inner ring cavity (13). The sealing groove three (14) is located outside the sealing ring groove (15), and two sealing grooves two (12) are provided outside the sealing groove three (14). The sealing grooves two (12) and the sealing groove one (8) form a complete hollow ring.

6. A subway entrance light with anti-fog function according to claim 5, characterized in that, The top cylindrical sidewall of the lampshade (5) is provided with four connecting blocks (11) arranged in a ring array. The connecting blocks (11) are connected to the connecting holes (7) by matching screws. The inside of the lampshade (5) is a thermally conductive lens substrate (16). Both the inner and outer sides of the thermally conductive lens substrate (16) are coated with a nano anti-fog coating (17).

7. A subway entrance light with anti-fog function according to claim 4, characterized in that, The rubber sealing ring (2) is placed inside the complete hollow ring formed by the sealing groove 2 (12) and the sealing groove 1 (8).

8. A subway entrance light with anti-fog function according to claim 4, characterized in that, The heating film (4) is in the shape of a hollow cylinder, and the heating film (4) is placed inside the inner ring cavity (13), while the sealant (3) is placed inside the sealing groove (14).

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