Linear LED tunnel lamp

Abstract

The application relates to the technical field of tunnel lamps, and discloses a linear LED tunnel lamp, which comprises a radiator, the inner side of the radiator is provided with a first clamping groove. The linear LED tunnel lamp is characterized in that the radiator made of aluminum profile and the circuit board with the aluminum base plate are matched, and the heat dissipation fins are matched, so that the heat of the lamp beads can be quickly transferred to avoid accumulation, the damage of the lamp beads and the serious light decay caused by poor heat dissipation of the equipment are avoided, the service life of the lamp beads can be greatly prolonged, the long-term stability of the tunnel lighting can be ensured, then the precise and stable assembly of the circuit board, the left reflector and the right reflector is realized through the first clamping groove and the second clamping groove, the symmetrical left reflector and the right reflector made of the high-reflectivity plastic material and the translucent PC diffusion plate filled with the light diffusion agent are matched, the light utilization rate is improved, uniform diffusion is realized, glare and uneven light distribution are avoided, the uneven light distribution of the existing equipment is improved, uniform and safe lighting effects are realized, and the practicability of the LED tunnel lamp is improved.

Description

Technical Field

[0001] This application relates to the field of tunnel lighting technology, specifically a linear LED tunnel light. Background Technology

[0002] As a crucial component of transportation infrastructure, tunnel lighting systems directly impact driving safety and traffic efficiency. Linear LED tunnel lights, with their elongated structure offering wide light coverage, flexible installation layout, and continuous, uniform illumination, are widely used in long-distance tunnels and underground utility tunnels, effectively solving the problems of numerous light gaps and large blind spots associated with traditional lighting fixtures. Simultaneously, with the increasing traffic volume, the demand for energy conservation, low maintenance costs, and long-term stable operation in tunnel lighting is becoming increasingly urgent, leading to a continuous expansion in the application of LED tunnel lights. However, existing products still have room for improvement in their core performance characteristics suited to the unique environment of tunnels.

[0003] However, existing linear LED tunnel lights have certain limitations in practical use. Among them, the installation frame structure of existing LED tunnel lights is unreasonable, and the heat generated by LED operation is difficult to dissipate quickly and efficiently, resulting in a significant reduction in the lifespan of the LED beads and serious light decay. This not only increases equipment maintenance costs but also affects the stability of tunnel lighting. Furthermore, existing LED tunnel lights either have strong glare, which can easily pose a hazard to driving safety in the tunnel, or uneven light distribution, which cannot meet the requirements of tunnel lighting for softness and uniformity, thus reducing the overall lighting quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a linear LED tunnel light. By combining the heat sink of an aluminum profile with the circuit board of an aluminum substrate, and with the help of heat dissipation fins, the heat of the LED beads can be quickly transferred to prevent heat accumulation, thus significantly extending the lifespan of the LED beads. Subsequently, by utilizing the left reflector, right reflector, and PC diffuser, the light utilization rate is improved and uniform diffusion is achieved, avoiding glare and uneven light distribution, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: a linear LED tunnel light, including a heat sink, a first slot on the inner side of the heat sink, two sets of symmetrical second slots on the inner side of the heat sink, a circuit board inserted into the inner side of the first slot, and multiple equidistantly arranged LED beads fixedly installed on the outer side of the circuit board, a left reflector inserted into the inner side of one of the second slots, a right reflector inserted into the inner side of the other second slot, a PC diffuser plate installed on the inner side of the heat sink, a protective glass fixedly installed on the outer side of the heat sink, and multiple equidistantly arranged heat dissipation fins fixedly installed on the outer side of the heat sink.

[0006] The above scheme utilizes the first and second slots to achieve precise positioning and stable installation of the circuit board, left reflector, and right reflector. Furthermore, the heat sink, combined with heat dissipation fins, expands the heat dissipation contact area, thereby improving the heat dissipation effect of the tunnel light and preventing damage to the circuit board and surface LEDs due to poor heat dissipation, thus extending its service life. Then, the combined effect of the left and right reflectors and the PC diffuser plate achieves uniform diffusion of the lamp tubes, preventing excessive local light and glare, while guiding the light in a preset direction. In addition, the protective glass enhances the uniformity and safety of tunnel lighting.

[0007] Furthermore, the heat sink is made of aluminum profile, the circuit board is made of aluminum substrate, and the heat sink fins are integrally formed with the heat sink.

[0008] Through the above solution, the heat sink of the aluminum profile and the circuit board of the aluminum substrate have efficient heat conduction effect, which can quickly transfer the heat generated by the circuit board and the lamp beads. In addition, the integrated molding structure of the heat sink fins and the heat sink eliminates the splicing gaps, ensures the continuity of the heat conduction path, effectively avoids heat accumulation around the lamp beads, extends the service life of the lamp beads, and ensures the long-term stability of tunnel lighting.

[0009] Furthermore, the outer dimensions of the left reflector and the right reflector are adapted to the inner wall dimensions of the second slot, the left reflector and the right reflector are symmetrically arranged, and both the left reflector and the right reflector are made of high reflectivity plastic.

[0010] Through the above solution, the adaptation of the left and right reflectors to the second slot can achieve quick and stable installation. At the same time, the symmetrical arrangement can reflect the light emitted by the lamp beads symmetrically. Combined with the high reflectivity plastic material, it can improve the light utilization rate, avoid glare caused by excessive local light, and guide the light to spread in the preset direction to improve the illumination effect.

[0011] Furthermore, a connection terminal is fixedly installed on the outer side of the circuit board, a rubber sealing ring is fixedly installed on the outer side of the connection terminal, and a power cord is installed on the outer side of the connection terminal, the power cord being electrically connected to an external power source.

[0012] The above-mentioned rubber sealing ring can seal and protect the connection between the connection end and the heat sink, preventing humid air or moisture in the tunnel from entering the internal circuit, thereby preventing short circuit damage and improving the reliability of linear LED tunnel lights in humid environments.

[0013] Furthermore, the PC diffusion plate is made of a semi-transparent material, and the interior of the PC diffusion plate is filled with a light diffusing agent. The protective glass is made of high-transmittance tempered glass.

[0014] Through the above solution, the translucent PC diffuser plate filled with light diffuser can diffuse light evenly, making the light softer and eliminating the risk of glare. Then, by using high-transmittance tempered glass for the protective glass, it can ensure high light transmittance while protecting the tunnel lights, thus achieving a dual improvement in lighting effect and equipment protection.

[0015] Furthermore, two sets of symmetrical blocking plates are installed on the outside of the radiator, and multiple fastening bolts are installed on the outside of both sets of blocking plates.

[0016] The above solution involves sealing both sides of the radiator with a blocking plate and fastening bolts, thereby protecting the internal circuit board and left reflector, enhancing the integrity and stability of the overall structure, and preventing component displacement during transportation or use.

[0017] Furthermore, the two sets of blocking plates are fixedly connected to the heat sink by fastening bolts, and the circuit board and the heat sink are fixedly connected by bolts.

[0018] The above solution ensures the stability of the connection between the plug and the radiator, and the connection between the circuit board and the radiator. This prevents lighting malfunctions caused by loose components. At the same time, the detachable nature of the bolt connection facilitates the replacement of faulty components later.

[0019] Furthermore, waterproof rubber rings are installed on the inner sides of both of the blocking plates. The waterproof rubber rings are made of elastic rubber, and the outer sides of the blocking plates and the ends of the radiator are tightly fitted with the waterproof rubber rings.

[0020] Through the above solution, the waterproof rubber ring made of the above elastic rubber material fits tightly against the end of the plug and the end of the radiator to form a double sealing structure, which further blocks the path of water from the end of the radiator to enter the interior, reduces the corrosion of water on components such as circuit boards and LED beads, and extends the overall service life of the equipment.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This linear LED tunnel light utilizes a combination of an aluminum profile heat sink and an aluminum substrate circuit board, along with heat dissipation fins, to quickly transfer heat from the LED chips, preventing heat buildup and thus avoiding damage and severe light decay caused by poor heat dissipation. This significantly extends the lifespan of the LED chips and ensures long-term stable tunnel lighting. The circuit board, left reflector, and right reflector are precisely and securely assembled using first and second slots. Combined with symmetrical left and right reflectors made of high-reflectivity plastic and a semi-transparent PC diffuser filled with light diffusing agent, light utilization is improved and uniform diffusion is achieved, avoiding glare and uneven light distribution. This improves the uneven light distribution of existing equipment, achieving uniform and safe lighting effects and enhancing the practicality of the LED tunnel light. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a top view of the overall structure of this application;

[0025] Figure 3 This is a side view of the overall structure of this application;

[0026] Figure 4 This is an exploded structural diagram of the entire application;

[0027] Figure 5 This is a cross-sectional view of the overall structure of this application.

[0028] In the picture:

[0029] 1. Heat sink; 2. First slot; 3. Second slot; 4. Circuit board; 5. Left reflector; 6. Right reflector; 7. Connecting end; 8. Power cord; 9. PC diffuser plate; 10. Protective glass; 11. Waterproof rubber ring; 12. Blocking plate; 13. Fastening bolts; 14. Heat sink fins. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 4 and Figure 5This embodiment of a linear LED tunnel light includes a heat sink 1. A first slot 2 is formed on the inner side of the heat sink 1, and two sets of symmetrical second slots 3 are formed on the inner side of the heat sink 1. A circuit board 4 is inserted into the inner side of the first slot 2, and multiple equidistantly arranged LED beads are fixedly installed on the outer side of the circuit board 4. A left reflector 5 is inserted into the inner side of one of the second slots 3, and a right reflector 6 is inserted into the inner side of the other second slot 3. The first and second slots 2 and 3 enable precise positioning and stable installation of the circuit board 4, the left reflector 5, and the right reflector 6. A PC diffuser plate 9 is installed inside the heat sink 1. The combined effect of the left reflector 5, the right reflector 6, and the PC diffuser plate 9 enables uniform diffusion of the LEDs, preventing excessive local light and glare, and guiding the light in a preset direction. The outer dimensions of the left reflector 5 and the right reflector 6 are the same as the inner wall dimensions of the second slots 3. The left reflector 5 and right reflector 6 are symmetrically arranged and are made of high-reflectivity plastic. The fit between the left reflector 5 and right reflector 6 and the second slot 3 allows for quick and stable installation. The symmetrical arrangement allows for symmetrical reflection of the light emitted by the LED beads. The high-reflectivity plastic material improves light utilization and avoids glare caused by excessive local light. It also guides the light to propagate in the preset direction, improving the illumination effect. The PC diffuser 9 is made of semi-transparent material and is filled with a light diffusing agent. The protective glass 10 is made of high-transmittance tempered glass. The semi-transparent PC diffuser 9 filled with light diffusing agent can evenly diffuse the light, making the light softer and eliminating the risk of glare. The use of high-transmittance tempered glass in the protective glass 10 ensures high light transmittance while protecting the tunnel light, achieving a dual improvement in lighting effect and equipment protection.

[0032] Please see Figure 3 , Figure 4 and Figure 5A protective glass 10 is fixedly installed on the outer side of the heat sink 1. Multiple equidistantly arranged heat dissipation fins 14 are also fixedly installed on the outer side of the heat sink 1. The heat sink 1, in conjunction with the heat dissipation fins 14, expands the heat dissipation contact area, thereby improving the heat dissipation effect of the tunnel light and preventing damage to the circuit board 4 and the LED chips due to poor heat dissipation, thus extending its service life. The heat sink 1 is made of aluminum profile, and the circuit board 4 is made of aluminum substrate. The heat dissipation fins 14 and the heat sink 1 are integrally formed. Both the aluminum profile heat sink 1 and the aluminum substrate circuit board 4 have highly efficient thermal conductivity, thus quickly transferring the heat generated by the circuit board 4 and the LED chips during operation and dissipating it effectively. The integrated structure of the heat fins 14 and the heat sink 1 eliminates splicing gaps, ensures the continuity of the heat conduction path, effectively avoids heat accumulation around the LED beads, extends the lifespan of the LED beads, and ensures the long-term stability of tunnel lighting. A connection terminal 7 is fixedly installed on the outside of the circuit board 4, and a rubber sealing ring is fixedly installed on the outside of the connection terminal 7. A power cord 8 is installed on the outside of the connection terminal 7, and the power cord 8 is electrically connected to an external power source. The aforementioned rubber sealing ring can seal and protect the connection between the connection terminal 7 and the heat sink 1, preventing humid air or moisture in the tunnel from entering the internal circuit, thereby preventing short circuit damage and improving the reliability of the linear LED tunnel light in humid environments.

[0033] Please see Figure 1 , Figure 2 and Figure 3 Two sets of symmetrical blocking plates 12 are installed on the outer side of the radiator 1. Multiple fastening bolts 13 are installed on the outer side of each blocking plate 12. The blocking plates 12, together with the fastening bolts 13, seal both sides of the radiator 1, thereby enclosing and protecting the internal circuit board 4 and left reflector 5, enhancing the integrity and stability of the overall structure, and preventing component displacement during transportation or use. The two sets of blocking plates 12 are fixedly connected to the radiator 1 by the fastening bolts 13, and the circuit board 4 is fixedly connected to the radiator 1 by bolts. The bolted connections of the blocking plates 12 to the radiator 1 and the circuit board 4 to the radiator 1 ensure the connection of all components. The bolted connection ensures stability and prevents lighting malfunctions caused by loose components. The detachable nature of the bolted connection facilitates replacement of faulty parts later. Waterproof rubber rings 11 are installed on the inner sides of both end plates 12. The waterproof rubber rings 11 are made of elastic rubber. The outer sides of the end plates 12 and the end of the radiator 1 are tightly fitted with the waterproof rubber rings 11. This tight fit of the elastic rubber waterproof rubber rings 11 with the end plates 12 and the end of the radiator 1 forms a double-seal structure, further blocking the path of moisture intrusion from the end of the radiator 1, reducing moisture corrosion of the circuit board 4, LED beads, and other components, and extending the overall service life of the equipment.

[0034] The working principle of the above embodiment is as follows: First, an external power supply is connected through the power cord 8. The current is transmitted through the connection terminal 7 to the circuit board 4 inserted into the first slot 2 of the heat sink 1, causing the LED beads on the outside of the circuit board 4 to be powered on and emit light. At this time, the heat generated by the LED beads is quickly conducted through the circuit board 4 of the aluminum substrate to the heat sink 1 of the aluminum profile. With the help of the heat sink 1 itself and the heat dissipation fins 14 on the outside, the heat dissipation contact area is expanded, and the heat is quickly transferred to the external environment, effectively preventing heat from accumulating around the LED beads and ensuring the stable operation of the LED beads. Then, the light emitted by the LED beads is symmetrically reflected by the left reflector 5 and the right reflector 6 symmetrically arranged in the second slot 3. At this time, the left reflector 5 and right reflector 6, made of high-reflectivity plastic material, improve the light utilization rate and guide the light to spread in the preset direction. Then, the light passes through the PC diffuser 9 and is uniformly diffused by the internal light diffusing agent, making the light softer to eliminate the risk of glare. The diffused light is then projected into the tunnel through the high-transmittance tempered glass protective glass 10 on the outside of the radiator 1, achieving a uniform and safe lighting effect. After that, the blocking plate 12 and the waterproof rubber ring 11 are tightly attached to the end of the radiator 1, thereby sealing and protecting it from the entry of humid air and moisture into the internal circuit, ensuring the long-term stable operation of the tunnel light.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linear LED tunnel light, comprising a heat sink (1), characterized in that: The heat sink (1) has a first slot (2) on its inner side and two sets of symmetrical second slots (3) on its inner side. A circuit board (4) is inserted into the inner side of the first slot (2). Multiple LED beads are fixedly installed on the outer side of the circuit board (4). A left reflector (5) is inserted into the inner side of one of the second slots (3) and a right reflector (6) is inserted into the inner side of the other second slot (3). A PC diffuser plate (9) is installed on the inner side of the heat sink (1). A protective glass (10) is fixedly installed on the outer side of the heat sink (1). Multiple heat dissipation fins (14) are fixedly installed on the outer side of the heat sink (1).

2. A linear LED tunnel light according to claim 1, characterized in that: The heat sink (1) is made of aluminum profile, the circuit board (4) is made of aluminum substrate, and the heat sink fins (14) and the heat sink (1) are integrally formed.

3. A linear LED tunnel light according to claim 1, characterized in that: The outer dimensions of the left reflector (5) and the right reflector (6) are adapted to the inner wall dimensions of the second slot (3). The left reflector (5) and the right reflector (6) are symmetrically arranged. Both the left reflector (5) and the right reflector (6) are made of high reflectivity plastic.

4. A linear LED tunnel light according to claim 1, characterized in that: A connection terminal (7) is fixedly installed on the outside of the circuit board (4), a rubber sealing ring is fixedly installed on the outside of the connection terminal (7), and a power cord (8) is installed on the outside of the connection terminal (7). The power cord (8) is electrically connected to an external power source.

5. A linear LED tunnel light according to claim 1, characterized in that: The PC diffuser plate (9) is made of a semi-transparent material, and the interior of the PC diffuser plate (9) is filled with a light diffuser. The protective glass (10) is made of high-transmittance tempered glass.

6. A linear LED tunnel light according to claim 1, characterized in that: Two sets of symmetrical blocking plates (12) are installed on the outside of the radiator (1), and multiple fastening bolts (13) are installed on the outside of both sets of blocking plates (12).

7. A linear LED tunnel light according to claim 6, characterized in that: The two sets of blocking plates (12) are fixedly connected to the heat sink (1) by fastening bolts (13), and the circuit board (4) and the heat sink (1) are fixedly connected by bolts.

8. A linear LED tunnel light according to claim 7, characterized in that: Waterproof rubber rings (11) are installed on the inner side of both of the two blocking plates (12). The waterproof rubber rings (11) are made of elastic rubber. The outer side of the blocking plate (12) and the end of the radiator (1) are tightly fitted with the waterproof rubber rings (11).

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