An explosion-proof LED lamp with a multi-channel heat dissipation structure

Abstract

The utility model provides a kind of multi-channel heat dissipation structure's explosion-proof LED lamp, belongs to explosion-proof LED lamp technical field, including lamp base, explosion-proof lamp is fixed on lamp base, and the side wall of lamp base is fixed with the lampshade of being sleeved in the outside of explosion-proof lamp, the outer periphery of explosion-proof lamp is successively coiled with multiple liquid cooling pipes, and multiple liquid cooling pipes are spaced along the axial distribution in the outer wall of explosion-proof lamp, and liquid cooling pipe is the core component of multi-channel heat dissipation, maximum contact area to improve heat exchange efficiency, the inner chamber of the back of lamp base is provided with the refrigerant booster pump for simultaneously circulating the refrigerant in multiple liquid cooling pipes, the refrigerant is circulated and flows in liquid cooling pipe inside by refrigerant booster pump, the side wall of lampshade base is fixedly connected with the sealing element of interference fit with lampshade, the fastening effect between lampshade and explosion-proof lamp is guaranteed by interference fit sealing element, to ensure that sealing space is improved simultaneously explosion-proof effect.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof LED lighting technology, specifically an explosion-proof LED lighting fixture with a multi-channel heat dissipation structure. Background Technology

[0002] With the increasing demands for safety and stability in industrial production, explosion-proof LED lighting fixtures are gradually replacing traditional explosion-proof fixtures as the mainstream choice due to their advantages such as energy saving, long lifespan, and environmental friendliness. However, if the large amount of heat generated by LED light sources during operation cannot be dissipated in time, it will not only lead to a decrease in LED luminous efficiency and color temperature shift, but also accelerate the aging of LED chips, significantly shortening the lifespan of the fixture. More seriously, excessively high internal temperatures may damage the explosion-proof sealing structure of the fixture, causing safety accidents such as explosions of flammable and explosive gases. Therefore, heat dissipation performance has become a key factor restricting the development of explosion-proof LED lighting fixtures.

[0003] The related technology (announcement number: CN223345295U) discloses an explosion-proof LED light. The disclosed technical solution is that the angle of the explosion-proof light body can be adjusted by pulling and rotating the handle, and the explosion-proof light body can be fixed in the adjusted position by releasing the handle. It is simple and convenient to operate and can quickly complete the angle adjustment of the explosion-proof light body.

[0004] The above-disclosed technical solutions reveal the following problems: Most existing explosion-proof LED lighting fixtures employ a single heat dissipation channel, such as external heat dissipation through the heat dissipation fins of the fixture housing, or internal heat dissipation through simple heat dissipation components inside the fixture. The internal heat dissipation channel is not smooth, and heat easily accumulates inside the fixture, failing to be quickly transferred to the outside. In response, we propose an explosion-proof LED lighting fixture with a multi-channel heat dissipation structure.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the heat dissipation problem of explosion-proof LED lights in the prior art, this utility model provides an explosion-proof LED light fixture with a multi-channel heat dissipation structure. The multi-channel heat dissipation structure combined with a liquid cooling structure achieves improved heat dissipation efficiency. The specific technical solution is as follows: An explosion-proof LED lamp with a multi-channel heat dissipation structure includes a lamp base, an explosion-proof lamp fixed on the lamp base, and a lamp cover fitted over the explosion-proof lamp fixed to the side wall of the lamp base. Multiple refrigerant pipes are sequentially coiled around the outer periphery of the explosion-proof lamp, and the multiple refrigerant pipes are distributed axially at intervals on the outer wall of the explosion-proof lamp. A refrigerant booster pump for simultaneously circulating refrigerant in multiple refrigerant pipes is provided in the inner cavity of the back of the lamp base. Heat dissipation fins connected to the refrigerant pipes are uniformly fixed to the side wall of the lamp base.

[0007] In the above technical solution, the sidewall of the lamp base is uniformly fixed with heat dissipation fins located on both sides of the explosion-proof lamp, and the heat dissipation fins in each row are arranged at intervals along the direction of the refrigerant, and an internal heat dissipation channel is formed between two adjacent heat dissipation fins.

[0008] The sidewalls of the lamp base are evenly fixed with clamps for connecting refrigerant pipes.

[0009] The heat dissipation fins have microchannels on their sidewalls, and the distance between two adjacent microchannels is 0.3-1.0 mm.

[0010] The heat dissipation fins have an arc-shaped airflow guide on the side away from the lamp base.

[0011] The refrigerant pipes are made of copper.

[0012] The inner wall of the lampshade is coated with a thermally conductive coating.

[0013] The outer wall of the lampshade is uniformly provided with lenses corresponding to the lamp beads.

[0014] The side wall of the lamp base is fixed with a sealing element that is interference-fitted with the lamp cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. Multiple refrigerant pipes coiled around the periphery of the explosion-proof lamp are tightly fitted to the lamp body, maximizing the heat exchange area. Combined with a refrigerant booster pump on the back of the lamp base, the refrigerant circulates within the pipes, quickly dissipating the large amount of heat generated by the LEDs. Compared to traditional passive cooling, liquid cooling active cooling lowers the core temperature inside the lamp, effectively preventing LED luminous efficiency degradation and shortened lifespan due to high temperatures.

[0016] Second, the pure aluminum heat dissipation fins on both sides of the lamp base are arranged at intervals along the refrigerant direction, forming independent internal heat dissipation channels. This guides air convection and further dissipates residual heat not completely removed by the liquid cooling system. At the same time, the microchannel structure on the sidewalls of the fins increases the contact area with air, improving convection heat dissipation efficiency by more than 25% compared to a textureless structure. The arc-shaped guide section at the top reduces airflow resistance, ensuring stable heat dissipation even in poorly ventilated, enclosed environments.

[0017] Third, the active heat dissipation of the refrigerant pipes and the passive heat dissipation of the heat sink fins form an "active + passive" dual-path system. Combined with the heat-conducting coating on the inner wall of the lamp cover to conduct and dissipate heat from the air inside the cavity, a comprehensive multi-channel heat dissipation system is constructed. This system can cover all heat-generating areas of the lamp from the core light source to the outer shell, avoiding local heat accumulation and ensuring that the highest internal temperature of the lamp is stably controlled below 65℃ when it is working at full power, and the junction temperature of the LED beads is below 75℃, meeting the requirements for long-term stable operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an explosion-proof LED lamp with a multi-channel heat dissipation structure according to the present invention. Figure I ; Figure 2 This is a schematic diagram of the structure of an explosion-proof LED lamp with a multi-channel heat dissipation structure according to the present invention. Figure II ; Figure 3 This is a cross-sectional view of the lamp base portion of this utility model; Figure 4 This is a partial structural schematic diagram of the lamp base of this utility model; in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Lamp base, 2-Explosion-proof lamp, 3-Lamp cover, 4-Refrigerant pipe, 5-Refrigerant booster pump, 6-Seal, 7-Heat dissipation fins, 8-Microchannel, 9-Lens, 10-Card holder. Detailed Implementation

[0019] 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.

[0020] The following are specific implementation cases and appendices. Figure 1-4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0021] An explosion-proof LED lamp with a multi-channel heat dissipation structure includes a lamp base 1, an explosion-proof lamp 2 fixed on the lamp base 1, and a lamp cover 3 fitted over the explosion-proof lamp 2 fixed to the side wall of the lamp base 1. Multiple refrigerant pipes 4 are sequentially coiled around the outer periphery of the explosion-proof lamp 2, and the multiple refrigerant pipes 4 are distributed axially at intervals on the outer wall of the explosion-proof lamp 2. The refrigerant pipes 4 are the core components of the multi-channel heat dissipation. The spacing between adjacent refrigerant pipes 4 is 15-25mm to ensure that the refrigerant pipes 4 are in close contact with the outer shell of the explosion-proof lamp 2, maximizing the contact area to improve heat exchange efficiency.

[0022] The inner cavity of the back of the lamp base 1 is equipped with a refrigerant booster pump 5 for simultaneously circulating refrigerant in multiple refrigerant pipes 4. Heat dissipation fins 7 are fixed to the outer surface of the lamp base 1, and extension fins are installed on the heat dissipation fins 7, extending into the inner cavity of the back of the lamp base 1 and fitting against the refrigerant pipes 4 through the inner cavity. The refrigerant booster pump 5 drives the refrigerant to circulate within the refrigerant pipes 4, carrying away heat through the circulating refrigerant and simultaneously conducting heat to the outside through the heat dissipation fins 7 fitted against the outer wall of the refrigerant pipes 4. A sealing element 6 is fixed to the side wall of the lamp base 1, which interlocks with the lampshade 3. The interlocking sealing element 6 ensures a tight fit between the lampshade 3 and the explosion-proof lamp 2, thereby ensuring a sealed space while improving the explosion-proof effect.

[0023] The lamp base 1 has heat dissipation fins 7 evenly fixed on its sidewalls, located on both sides of the explosion-proof lamp 2. Each row of heat dissipation fins 7 is arranged at intervals along the direction of the refrigerant, and an internal heat dissipation channel is formed between two adjacent heat dissipation fins 7. The heat dissipation fins 7 are key components for passive heat dissipation. They are made of pure aluminum through an extrusion molding process and have the characteristics of being lightweight and having high thermal conductivity.

[0024] Each row of heat dissipation fins 7 is arranged at intervals along the direction of the refrigerant, with an adjacent fin spacing of 8-12mm. An internal heat dissipation channel is formed between two adjacent heat dissipation fins 7, which facilitates the flow of air in the channel and removes heat through convection.

[0025] It is worth noting that the side wall of the lamp base 1 is uniformly fixed with clamping seats 10 for clamping the refrigerant pipe 4. The clamping seats 10 are made of high-temperature resistant engineering plastic, and their surface has arc-shaped grooves that match the outer diameter of the refrigerant pipe 4. The refrigerant pipe 4 is fixed by interference fit, preventing the pipe from shifting or falling off in a vibrating environment. At the same time, the clamping seats 10 and the lamp base 1 are fastened with screws, and a sealing gasket is provided at the connection to prevent external impurities from entering the interior of the clamping seats 10 and affecting the stability of the pipe.

[0026] The heat dissipation fins 7 have microchannels 8 on their sidewalls, with a spacing of 0.3-1.0 mm between two adjacent microchannels. The depth of the microchannels 8 is 0.1-0.5 mm and the width is 0.2-0.8 mm. These microchannels are used to increase the contact area between the heat dissipation fins 7 and the air, thereby improving the convective heat dissipation efficiency.

[0027] The heat dissipation fins 7 have an arc-shaped airflow guide on the side away from the lamp base 1. The radius of curvature of the arc-shaped airflow guide is 5-15mm, which is used to guide the air to flow smoothly in the external heat dissipation channel and reduce airflow resistance.

[0028] In addition, refrigerant pipe 4 is made of copper. Copper has a thermal conductivity of 390-401 W / (mK), which is more than 8 times that of steel. It can quickly transfer the heat carried by the refrigerant, significantly improving the cooling efficiency. Furthermore, copper can resist the corrosion of refrigerant and its acidic byproducts, and it is not easy to rust even after long-term use in humid environments.

[0029] In addition, the inner wall of the lamp cover 3 is coated with a thermally conductive coating. The thickness of the thermally conductive coating is 5-15μm, and the thermally conductive coating is made of graphene thermally conductive paint or nano-ceramic thermally conductive paint to enhance the heat exchange efficiency between the inner wall of the explosion-proof shell and the air in the accommodating cavity.

[0030] Furthermore, lenses 9 corresponding to the LED beads are evenly distributed on the outer wall of the lamp cover 3. The brightness of the explosion-proof lamp is improved by the lenses 9.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] 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. An explosion-proof LED lamp with a multi-channel heat dissipation structure, comprising a lamp base (1), an explosion-proof lamp (2) is fixed on the lamp base (1), and a lampshade (3) is fixed on the side wall of the lamp base (1) and covers the outside of the explosion-proof lamp (2), characterized in that, The explosion-proof lamp (2) has multiple refrigerant pipes (4) coiled around its outer periphery, and the multiple refrigerant pipes (4) are distributed axially at intervals on the outer wall of the explosion-proof lamp (2). The inner cavity of the lamp base (1) is provided with a refrigerant booster pump (5) for simultaneously circulating the refrigerant in the multiple refrigerant pipes (4). The side wall of the lamp base (1) is uniformly fixed with heat dissipation fins (7) connected to the refrigerant pipes (4).

2. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The heat dissipation fins (7) are evenly distributed on both sides of the explosion-proof lamp (2), and the heat dissipation fins (7) in each row are arranged at intervals along the direction of the refrigerant, and an internal heat dissipation channel is formed between two adjacent heat dissipation fins (7).

3. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The lamp base (1) has uniformly fixed brackets (10) for clamping the refrigerant pipe (4) on its side wall.

4. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The heat dissipation fins (7) have microchannels (8) on their sidewalls, and the distance between two adjacent microchannels is 0.3-1.0 mm.

5. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The heat dissipation fins (7) have an arc-shaped flow guide on the side away from the lamp base (1).

6. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The refrigerant pipe (4) is made of copper.

7. The explosion-proof LED lamp with a multi-channel heat dissipation structure according to claim 1, characterized in that: The inner wall of the lampshade (3) is coated with a thermally conductive coating.

8. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The outer wall of the lamp cover (3) is uniformly provided with lenses (9) corresponding to the lamp beads.

9. The explosion-proof LED lamp with multi-channel heat dissipation structure according to claim 1, characterized in that: The side wall of the lamp base (1) is fixed with a sealing element (6) that is interference-fitted with the lamp cover (3).

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