Explosion-proof lamp with heat dissipation function

Abstract

The utility model provides an explosion -proof lamp with heat dissipation function. Explosion -proof street lamp includes shell and light source board, is equipped with the light source cavity and power cavity of setting light source board in the shell, is equipped with the air guide channel between two cavities. First radiating fin is equipped between the light source cavity and power cavity for improving the heat dissipation efficiency and structural strength, and second radiating fin is arranged on the surface of the shell. Through the configuration of the air guide channel and the first and second radiating fins, the explosion -proof lighting with heat dissipation, reduced weight and cost is realized.

Description

Technical Field

[0001] This utility model relates to a lamp, and more particularly to an explosion-proof lamp with heat dissipation function. Background Technology

[0002] Lighting equipment is an indispensable tool in daily life. Existing explosion-proof streetlights are typically designed according to explosion-proof standards, requiring a sealed enclosure to prevent internal electrical components from contacting external flammable gases. However, the sealed enclosure significantly restricts heat dissipation, causing accelerated light decay of LED light sources and deformation of the sealing structure due to thermal expansion of the metal enclosure, affecting the explosion-proof effect. Currently, there are two main solutions: one is to increase the number and size of heat sink fins, but this increases product weight and cost, and raises installation risks; the other is to adopt a split dual-cavity structure, which improves heat dissipation, but increases manufacturing costs and structural complexity, and poses potential dangers due to additional electrical connections. Utility Model Content

[0003] In view of the above problems, one embodiment of this utility model proposes an explosion-proof lighting fixture with heat dissipation function, comprising a housing and a light source board. The housing has a light source cavity and a power supply cavity, and includes multiple first heat dissipation fins, multiple second heat dissipation fins, and multiple air guide channels. Each first heat dissipation fin is disposed between the light source cavity and the power supply cavity, each second heat dissipation fin is disposed on the outer surface of the housing, and each air guide channel is located between each second heat dissipation fin and extends through each first heat dissipation fin. The light source board is disposed in the light source cavity.

[0004] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, each second heat dissipation fin is arranged side by side on the top of the housing, and each first heat dissipation fin is arranged side by side on the bottom of the housing.

[0005] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, the front section of each air guide channel is located at the top of the light source cavity, and the rear section of each air guide channel has a turning track, which forms between the light source cavity and the power supply cavity.

[0006] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, each of the first heat dissipation fins is connected to the side wall between the light source cavity and the power supply cavity.

[0007] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, each second heat dissipation fin is arranged in an inclined structure that gradually increases in size from the portion adjacent to the front light source cavity to the portion adjacent to the rear power supply cavity.

[0008] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, each second heat dissipation fin has a wide portion and a narrow portion. The wide portion is located near the center of the outer casing and corresponds to the center of the light source cavity, while the narrow portion is located near the edge of the outer casing.

[0009] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, the light source board is electrically connected to the power module in the power supply cavity.

[0010] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, it further includes an intelligent module, which is embedded in the slot of the reflector of the light source cavity, with the signal surface facing the transparent glass at the bottom of the housing.

[0011] According to a preferred embodiment of the explosion-proof lamp with heat dissipation function described above, the outer shell is an integrally molded structure, and the light source cavity and the power supply cavity are separated by each first heat dissipation fin and each air guide channel.

[0012] In summary, the explosion-proof lighting fixture with heat dissipation function according to an embodiment of this utility model overcomes the heat dissipation bottleneck under a sealed shell by forming a synergistic heat dissipation network through air guide channels and heat dissipation fins, effectively delaying LED light decay. Furthermore, the conformal design of the heat dissipation fins avoids material waste, reducing overall weight by 20% to 30% and cost by 15% to 25%. Moreover, the second heat dissipation fin utilizes the installation tilt angle and rainwater rinsing effect to keep the heat dissipation channel clean, reducing maintenance. Additionally, the intelligent module is embedded within the light source cavity, ensuring signal transmission is not shielded by the metal shell while maintaining explosion-proof integrity and avoiding the risks of additional openings and external wiring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the bottom appearance of a lamp according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the top appearance of a lamp according to an embodiment of the present invention.

[0015] Figure 3 This is an exploded view of an embodiment of the lamp according to the present invention.

[0016] Figure 4 This is a top view schematic diagram of a lamp fixture embodiment according to the present utility model.

[0017] Figure 5 According to Figure 4 A cross-sectional view of the lead wire marked AA.

[0018] Figure 6 According to Figure 5 Enlarged schematic diagram of lead B.

[0019] Figure 7 This is a perspective sectional view of an embodiment of the lamp according to the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Outer shell, 12. Light source cavity, 13. Power supply cavity, 14. Air duct, 15. First heat dissipation fin, 16. Turning track, 17. Second heat dissipation fin, 171. Inclined structure, 172. Wide part, 173. Narrow part, 2. Light source board, 3. Power module, 4. Intelligent module, 5. Reflector, 51. Card slot, 7. Transparent glass, P. Convection path. Detailed Implementation

[0022] The advantages and features of this invention, as well as the methods of achieving it, will be more readily understood from a more detailed description with reference to exemplary embodiments and accompanying drawings. However, this invention may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments provided will enable those skilled in the art to more thoroughly and completely convey the scope of this invention, which will be defined solely by the appended claims. In the drawings, the dimensions and relative dimensions of components or parts are shown in an exaggerated manner for clarity. Throughout this specification, the same component symbols refer to the same components. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed objects.

[0023] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms defined, for example, in commonly used dictionaries, shall be understood to have meanings consistent with those in the relevant field, and shall not be interpreted in an overly idealized or overly formal sense unless explicitly defined herein.

[0024] The following detailed description of exemplary embodiments, in conjunction with the accompanying drawings, is provided. However, these embodiments may be included in different forms and should not be construed as limiting the scope of this invention. The provision of these embodiments makes the disclosure of this invention complete and clear, and those skilled in the art will be able to understand the scope of this invention through these embodiments.

[0025] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0026] Please see Figures 1 to 5 , Figure 1 This is a schematic diagram of the bottom appearance of an embodiment of the lighting fixture. Figure 2 This is a schematic diagram of the top appearance of an embodiment of the lighting fixture. Figure 3 This is an exploded view of an embodiment of the lighting fixture. Figure 4 This is a top view schematic diagram of an embodiment of the lighting fixture. Figure 5 According to Figure 4 A cross-sectional view of the lead wire marked AA.

[0027] In this embodiment, the explosion-proof lighting fixture is used for street lighting. The explosion-proof lighting fixture includes a housing 1, which is integrally formed and conforms to explosion-proof requirements. The housing 1 is a flat, elongated shape, and contains a light source cavity 12 and a power supply cavity 13. A light source board 2 is disposed in the light source cavity 12. A power supply module 3 is disposed in the power supply cavity 13.

[0028] In this embodiment, the outer casing 1 includes multiple first heat dissipation fins 15, multiple second heat dissipation fins 17, and multiple air guide channels 14. Each first heat dissipation fin 15 is disposed between the light source cavity 12 and the power supply cavity 13, each second heat dissipation fin 17 is disposed on the outer surface of the outer casing 1, and each air guide channel 14 is located between the second heat dissipation fins 17 and extends through the first heat dissipation fins 15. The front section of each air guide channel 14 is located at the top of the light source cavity 12, and the rear section of each air guide channel 14 has a turning track 16, which forms between the light source cavity 12 and the power supply cavity 13. That is, an air guide channel 14 is provided between the light source cavity 12 and the power supply cavity 13, with the front section of the air guide channel 14 located at the top of the light source cavity 12 and the rear section being a turning track 16 (n-shaped structure), forming a convection path P. When the lamp is installed outdoors, air can flow through the air guide channel 14, carrying away the heat inside the cavity.

[0029] In this embodiment, a plurality of first heat dissipation fins 15 are provided between the light source cavity 12 and the power supply cavity 13. Their function is not only to improve heat dissipation efficiency, but also to strengthen the structural strength between the cavities. That is, each first heat dissipation fin 15 is connected to the side wall between the light source cavity 12 and the power supply cavity 13.

[0030] In this embodiment, a plurality of second heat dissipation fins 17 are provided on the outer shell 1. Each second heat dissipation fin 17 is provided with an inclined structure 171 that gradually increases in size from the part of the adjacent light source cavity 12 at the front to the part of the adjacent power supply cavity 13 at the rear. In other words, each second heat dissipation fin 17 is arranged side by side on the top of the outer shell 1, and each first heat dissipation fin 15 is arranged side by side on the bottom of the outer shell 1. Each second heat dissipation fin 17 is arranged along the tilt angle of the lamp, which can guide water flow to clean the surface of the lamp in rainy weather and maintain heat dissipation performance.

[0031] In this embodiment, each second heat dissipation fin 17 has a wide portion 172 and a narrow portion 173. The wide portion 172 is located near the center of the outer casing 1 and corresponds to the center of the light source cavity 12. The narrow portion 173 is located near the edge of the outer casing 1.

[0032] In general, the heat dissipation fins of streetlights are designed along the edges of the lamp body. This design leads to material waste and increases product weight. Since the overall heat distribution of the lamp is characterized by a high center and low perimeter, heat dissipation is extremely limited, especially at the edges where there is no light source board. Therefore, in this embodiment, the design of each second heat dissipation fin 17 adopts a conformal design. Each second heat dissipation fin 17 is established from the edge of the light source board 2, and from the side view of the product, it has a low edge and a high center. Furthermore, the first heat dissipation fin 15 and the second heat dissipation fin 17 are partially connected. The first heat dissipation fin 15 can also cool the power module 3 inside the power supply cavity 13, thus making high-efficiency heat dissipation by maximizing fin utilization.

[0033] Please see Figures 3 to 7 , Figure 6 According to Figure 5 Enlarged diagram of lead B, Figure 7 This is a three-dimensional sectional view of an embodiment of the lighting fixture. In this embodiment, the explosion-proof street light also includes an intelligent module 4, which is installed inside the light source cavity 12 and connected to the power module 3 inside the power supply cavity 13 via a wire channel. The intelligent module 4 is embedded in the slot 51 of the reflector 5 in the light source cavity 12, with its signal surface facing the transparent glass 7 at the bottom of the housing 1, ensuring the stability of wireless signal transmission. The installation method of the intelligent module 4 avoids the need for additional external antennas or pressure relief cavities, maintaining explosion-proof integrity. All electrical connections within the housing 1 are completed within the integrally molded explosion-proof housing 1. Through standard cable entry devices and sealing measures, the explosion-proof safety hazards caused by external wiring are completely eliminated. The intelligent module 4 is built into the housing 1, embedding it inside the light source cavity 12, achieving unobstructed wireless signal transmission while ensuring that the intelligent module 4 is within explosion-proof protection. There is no need to create a separate pressure relief cavity or lead an antenna out of the housing, maintaining the explosion-proof integrity and safety of the product, thereby enhancing safety and functional integration and overcoming the electrical risks of split designs.

[0034] In this embodiment, during assembly, firstly, the integrally molded outer shell 1 is manufactured, with the interior divided into a light source cavity 12 and a power supply cavity 13; secondly, an air guide channel 14 and a first heat dissipation fin 15 are set in the middle of the outer shell 1, and a second heat dissipation fin 17 is formed on the surface; then, the light source board 2 is installed in the light source cavity 12, and the smart module 4 is embedded in the slot 51 of the reflector 5; finally, the power module 3 is placed in the power supply cavity 13 and connected to the light source board 2 and the smart module 4 through the internal wire channel to complete the assembly.

[0035] In summary, the explosion-proof lighting fixture with heat dissipation function according to an embodiment of this utility model overcomes the heat dissipation bottleneck under a sealed shell by forming a synergistic heat dissipation network through air guide channels and heat dissipation fins, effectively delaying LED light decay. Furthermore, the conformal design of the heat dissipation fins avoids material waste, reducing overall weight by 20% to 30% and cost by 15% to 25%. Moreover, the second heat dissipation fin utilizes the installation tilt angle and rainwater rinsing effect to keep the heat dissipation channel clean, reducing maintenance. Additionally, the intelligent module is embedded within the light source cavity, ensuring signal transmission is not shielded by the metal shell while maintaining explosion-proof integrity and avoiding the risks of additional openings and external wiring.

[0036] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. An explosion-proof lighting fixture with heat dissipation function, characterized in that, Include: A housing having a light source cavity and a power supply cavity, the housing comprising multiple first heat dissipation fins, multiple second heat dissipation fins, and multiple airflow channels, each first heat dissipation fin being disposed between the light source cavity and the power supply cavity, each second heat dissipation fin being disposed on the outer surface of the housing, and each airflow channel being located between the second heat dissipation fins and extending through the spaces between the first heat dissipation fins; and A light source board is disposed in the light source cavity.

2. The explosion-proof lighting fixture with heat dissipation function as described in claim 1, characterized in that, Each of the second heat dissipation fins is arranged side by side on the top of the housing, and each of the first heat dissipation fins is arranged side by side on the bottom of the housing.

3. The explosion-proof lighting fixture with heat dissipation function as described in claim 1, characterized in that, The front section of each of the air guide channels is located at the top of the light source cavity, and the rear section of each of the air guide channels has a turning track, which forms between the light source cavity and the power supply cavity.

4. The explosion-proof lighting fixture with heat dissipation function as described in claim 1, characterized in that, Each of the first heat dissipation fins is connected to the sidewall between the light source cavity and the power supply cavity.

5. The explosion-proof lighting fixture with heat dissipation function as described in claim 1, characterized in that, Each of the second heat dissipation fins is arranged in an inclined structure that gradually increases in size from the portion adjacent to the light source cavity at the front to the portion adjacent to the power supply cavity at the rear.

6. The explosion-proof lighting fixture with heat dissipation function as described in claim 1, characterized in that, Each of the second heat dissipation fins has a wide portion and a narrow portion. The wide portion is located near the center of the housing and corresponds to the center of the light source cavity, while the narrow portion is located near the edge of the housing.

7. The explosion-proof lighting fixture with heat dissipation function as described in claim 1, characterized in that, The light source board is electrically connected to the power module inside the power supply cavity.

8. The explosion-proof lighting fixture with heat dissipation function as described in claim 7, characterized in that, It also includes an intelligent module, which is embedded in the slot of the reflector of the light source cavity, with the signal surface facing the transparent glass at the bottom of the housing.

9. The explosion-proof lighting fixture with heat dissipation function as described in claim 8, characterized in that, The outer shell is a one-piece molded structure, and the light source cavity and the power supply cavity are separated from each of the first heat dissipation fins and each of the air guide channels.

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