An LED lamp tube easy to dissipate heat by air convection

Abstract

The utility model discloses an easily air convection heat dissipation's LED lamp tube, including fixed establishment, the bottom of fixed establishment is equipped with heat dissipation mechanism, the bottom of heat dissipation mechanism is equipped with the lamp body, the fixed establishment includes mounting bracket, the utility model relates to LED lamp tube technical field, this easily air convection heat dissipation's LED lamp tube, through the heat dissipation fan of heat dissipation mechanism, heat dissipation channel, air vent and heat dissipation fin synergies, constructs forced convection heat dissipation system, and heat dissipation fin extends to the inside of heat dissipation channel and sets up the air vent, increases the heat dissipation area and reduces the air resistance, compares the natural heat dissipation efficiency and improves greatly, effectively reduces LED chip junction temperature, prolongs the service life of lamp tube, the heat conduction board of lamp body and the heat dissipation shell close adhesion, cooperate the high heat conduction material of heat dissipation fin, build the short path, efficient heat transfer channel, avoid the heat accumulation in the lamp tube, ensure that the heat dissipation effect is stable.

Description

Technical Field

[0001] This utility model relates to the field of LED tube technology, specifically an LED tube that is easy to dissipate heat through air convection. Background Technology

[0002] As the fourth generation of lighting sources, LED tubes boast significant advantages such as high energy conversion efficiency, low power consumption, no mercury pollution, and long lifespan (typically 50,000-100,000 hours, 3-5 times that of traditional fluorescent tubes). In practical applications, the luminous efficiency of LED tubes is closely related to their operating temperature. In the process of converting electrical energy into light energy, approximately 70%-80% of the electrical energy in the core component, the LED chip, is converted into heat, with only 20%-30% directly converted into visible light. If this heat cannot be dissipated efficiently and in a timely manner, the junction temperature of the LED chip will rise rapidly: when the junction temperature exceeds 85℃, the luminous efficiency of the LED chip will significantly decrease; for every 10℃ increase, the luminous efficiency drops by approximately 5%-10%. Simultaneously, high temperatures accelerate the aging of the semiconductor materials inside the chip, damage the stability of the encapsulating adhesive, leading to color temperature shifts and a decrease in the color rendering index. In severe cases, it can directly burn out the chip, shortening the tube's lifespan to less than 30% of its designed lifespan.

[0003] Existing LED tube heat dissipation structures typically employ natural heat dissipation, using heat dissipation fins or channels on the tube casing to dissipate heat. However, this structure suffers from poor air convection and limited heat dissipation efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an LED tube that facilitates heat dissipation through air convection, thus solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an LED tube that is easy to dissipate heat through air convection, including a fixing mechanism, a heat dissipation mechanism is installed at the bottom end of the fixing mechanism, and a tube body is installed at the bottom end of the heat dissipation mechanism; The fixing mechanism includes a mounting bracket, which is used to fix the lamp tube in the corresponding installation position; The heat dissipation mechanism includes a heat dissipation housing, which is used to dissipate heat from the lamp tube body.

[0006] Preferably, a second damping shaft is fixedly connected to both ends of the heat dissipation housing, and ventilation openings are provided on the bottom surfaces of both ends of the heat dissipation housing. A heat dissipation channel is opened inside the heat dissipation housing, and the heat dissipation channel is connected to the outside through the ventilation openings.

[0007] Preferably, a cooling fan is fixedly connected to the center of the top of the heat sink housing, and the end of the second damping shaft away from the heat sink housing is fixedly connected to the bottom end of the mounting bracket. The heat sink housing is rotatably connected to the mounting bracket through the second damping shaft.

[0008] Preferably, heat dissipation fins are fixedly installed on both sides of the top of the heat dissipation housing, the bottom end of the heat dissipation fins penetrates the heat dissipation housing and extends into the interior of the heat dissipation channel, and ventilation holes are opened on the surface of one end of the heat dissipation fins inside the heat dissipation channel.

[0009] Preferably, the lamp tube body is fixedly installed at the bottom end of the heat dissipation housing, and a heat-conducting plate is fixedly connected to the top end of the lamp tube body. The heat-conducting plate is fixedly installed on the bottom surface of the heat dissipation housing.

[0010] Preferably, both ends of the bottom of the mounting bracket are threaded with positioning knobs, and a first damping shaft is fixedly connected to the center of the top of the mounting bracket.

[0011] Preferably, a mounting plate is fixedly connected to the top end of the first damping shaft, and the surface of the mounting plate is provided with mounting holes. The mounting bracket is rotatably connected to the mounting plate through the first damping shaft.

[0012] Beneficial effects This invention provides an LED tube that facilitates heat dissipation through air convection. Compared with the prior art, it has the following advantages: This LED tube, which facilitates heat dissipation through air convection, utilizes a heat dissipation mechanism with a cooling fan, heat dissipation channel, vents, and heat dissipation fins working together to construct a forced convection heat dissipation system. The heat dissipation fins extend into the heat dissipation channel and have ventilation holes, increasing the heat dissipation area and reducing airflow resistance. Compared to natural heat dissipation, this significantly improves efficiency, effectively reducing the junction temperature of the LED chip and extending the lifespan of the tube. The heat-conducting plate of the tube body is tightly fitted to the heat dissipation shell, and together with the high thermal conductivity material of the heat dissipation fins, a short-path, high-efficiency heat transfer channel is constructed, preventing heat accumulation inside the tube and ensuring stable heat dissipation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the fixing mechanism structure of this utility model; Figure 3 This is a schematic diagram of the heat dissipation mechanism of this utility model; Figure 4 This is a schematic diagram of the internal structure of the heat dissipation shell of this utility model.

[0014] In the diagram: 1. Fixing mechanism; 11. Mounting bracket; 12. First damping shaft; 13. Mounting plate; 14. Mounting hole; 15. Positioning knob; 2. Heat dissipation mechanism; 21. Heat dissipation shell; 22. Second damping shaft; 23. Vent; 24. Heat dissipation channel; 25. Cooling fan; 26. Heat dissipation fins; 27. Vent hole; 3. Lamp tube body; 31. Heat conduction plate. Detailed Implementation

[0015] 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.

[0016] Example 1: Please see Figure 1-4 An LED tube that is easy to dissipate heat through air convection includes a fixing mechanism 1, a heat dissipation mechanism 2 is installed at the bottom of the fixing mechanism 1, and a tube body 3 is installed at the bottom of the heat dissipation mechanism 2. The fixing mechanism 1 includes a mounting bracket 11, which is used to fix the lamp tube in the corresponding installation position; The heat dissipation mechanism 2 includes a heat dissipation housing 21, which is used to dissipate heat from the lamp tube body 3.

[0017] The heat sink 21 is fixedly connected to a second damping shaft 22 at both ends. Ventilation openings 23 are provided on the bottom surface of both ends of the heat sink 21. A heat dissipation channel 24 is provided inside the heat sink 21, and the heat dissipation channel 24 is connected to the outside through the ventilation openings 23.

[0018] A cooling fan 25 is fixedly connected to the top center of the heat sink housing 21. The end of the second damping shaft 22 away from the heat sink housing 21 is fixedly connected to the bottom end of the mounting bracket 11. The heat sink housing 21 is rotatably connected to the mounting bracket 11 through the second damping shaft 22.

[0019] The top of the heat sink 21 is fixedly equipped with heat sink fins 26 on both sides of the heat sink 25. The bottom end of the heat sink fins 26 penetrates the heat sink 21 and extends into the interior of the heat dissipation channel 24. Ventilation holes 27 are opened on the surface of one end of the heat sink fins 26 inside the heat dissipation channel 24.

[0020] The lamp tube body 3 is fixedly installed at the bottom of the heat dissipation housing 21, and a heat-conducting plate 31 is fixedly connected to the top of the lamp tube body 3. The heat-conducting plate 31 is fixedly installed on the bottom surface of the heat dissipation housing 21.

[0021] The mounting bracket 11 has a positioning knob 15 threaded on both ends of its bottom, and a first damping shaft 12 is fixedly connected to the center of the top of the mounting bracket 11.

[0022] A mounting plate 13 is fixedly connected to the top end of the first damping shaft 12. The surface of the mounting plate 13 is provided with mounting holes 14. The mounting bracket 11 is rotatably connected to the mounting plate 13 through the first damping shaft 12.

[0023] In this embodiment, during use, the mounting plate 13 is fitted to the installation position through the mounting hole 14, and the mounting plate 13 is fixed by bolts passing through the mounting hole 14, thus completing the overall installation of the fixing mechanism 1; the mounting bracket 11 is rotated along the first damping axis 12 to adjust the horizontal lighting angle of the lamp tube, and the heat dissipation housing 21 is rotated along the second damping axis 22 to adjust the vertical lighting angle of the lamp tube body 3; after adjusting the angle to the desired position, the positioning knobs 15 at both ends of the bottom of the mounting bracket 11 are tightened. Through the threaded engagement between the positioning knobs 15 and the mounting bracket 11, pressure is applied to the second damping axis 22 to restrict its rotation and achieve angle positioning; After the lamp body 3 is connected to the power supply, the internal LED chip emits light to realize the lighting function. The heat generated by the LED chip is transferred to the outer shell of the lamp body 3 and quickly discharged through the heat conduction plate 31 at the top of the lamp body 3. The heat conduction plate 31 transfers the heat to the heat dissipation shell 21. The heat dissipation fins 26 inside the heat dissipation shell 21 dissipate the heat to the outside. While the heat dissipation fins 26 dissipate heat, the heat dissipation fan 25 exhausts the heated air inside the heat dissipation channel 24. At the same time as the hot air inside the heat dissipation shell 21 is exhausted, the outside cold air enters the interior of the heat dissipation shell 21 through the ventilation ports 23 set at both ends of the heat dissipation shell 21 and is exhausted again through the heat dissipation fan 25, forming forced air convection heat dissipation. As the outside cold air passes through the heat dissipation fins 26, it can continuously carry away the heat absorbed by the heat dissipation fins 26, further enhancing the heat dissipation effect. The mounting bracket 11 and the mounting plate 13 are rotatably connected by the first damping shaft 12, allowing the lamp tube's lighting angle to be adjusted 360° horizontally. The heat sink housing 21 and the mounting bracket 11 are rotatably connected by the second damping shaft 22, allowing the lamp tube body 3's lighting angle to be adjusted vertically to adapt to different lighting needs, significantly improving the flexibility of the lamp tube body 3. The mounting holes 14 on the surface of the mounting plate 13 can be used with bolts and other fasteners to securely fix it to the ceiling, wall, or other mounting surfaces. The positioning knob 15 can lock the relative position of the mounting bracket 11 and the heat sink housing 21 after the angle adjustment is completed, preventing angle displacement due to vibration during use and ensuring installation stability. The cooling fan 25 drives airflow, forming a complete air circulation loop with the cooling channel 24 and the vent 23, accelerating heat exchange. The cooling fins 26 extend into the cooling channel 24, increasing the heat dissipation area. The ventilation holes 27 on the surface of the cooling fins 26 reduce airflow resistance, further enhancing the convective heat dissipation effect, improving the efficiency by more than 30% compared to natural heat dissipation. Furthermore, the cooling fins 26 penetrate the heat sink 21, directly contacting the airflow in the cooling channel 24, while indirectly contacting the heat conduction plate 31 through the heat sink 21, achieving rapid heat transfer and dissipation of the lamp body 3 and preventing heat accumulation. The cooling fins 26 are symmetrically distributed on both sides of the cooling fan 25, and the vents 23 are located at the bottom of both ends of the heat sink 21, ensuring that the airflow is evenly distributed in the cooling channel 24, so that the heat from all parts of the cooling fins 26 is evenly dissipated, avoiding local overheating.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] 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 process, method, article, or apparatus.

[0026] 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 LED tube that facilitates heat dissipation through air convection, comprising a fixing mechanism (1), characterized in that: The bottom end of the fixing mechanism (1) is equipped with a heat dissipation mechanism (2), and the bottom end of the heat dissipation mechanism (2) is equipped with a lamp tube body (3). The fixing mechanism (1) includes a mounting bracket (11), which is used to fix the lamp tube in the corresponding installation position; The heat dissipation mechanism (2) includes a heat dissipation housing (21) and is used to dissipate heat from the lamp tube body (3).

2. The LED tube with easy air convection heat dissipation according to claim 1, characterized in that: The heat dissipation housing (21) is fixedly connected to a second damping shaft (22) at both ends. Ventilation openings (23) are provided on the bottom surface of both ends of the heat dissipation housing (21). A heat dissipation channel (24) is opened inside the heat dissipation housing (21). The heat dissipation channel (24) is connected to the outside through the ventilation openings (23).

3. The LED tube with easy air convection heat dissipation according to claim 2, characterized in that: A cooling fan (25) is fixedly connected to the top center of the heat dissipation housing (21). The end of the second damping shaft (22) away from the heat dissipation housing (21) is fixedly connected to the bottom end of the mounting bracket (11). The heat dissipation housing (21) is rotatably connected to the mounting bracket (11) through the second damping shaft (22).

4. The LED tube with easy air convection heat dissipation according to claim 3, characterized in that: The top of the heat sink housing (21) is fixedly installed with heat sink fins (26) on both sides of the heat sink fan (25). The bottom end of the heat sink fins (26) penetrates the heat sink housing (21) and extends into the interior of the heat dissipation channel (24). A ventilation hole (27) is opened on one end surface of the heat sink fins (26) inside the heat dissipation channel (24).

5. The LED tube with easy air convection heat dissipation according to claim 4, characterized in that: The lamp tube body (3) is fixedly installed at the bottom end of the heat dissipation shell (21), and a heat-conducting plate (31) is fixedly connected to the top end of the lamp tube body (3). The heat-conducting plate (31) is fixedly installed on the bottom surface of the heat dissipation shell (21).

6. The LED tube with easy air convection heat dissipation according to claim 5, characterized in that: The mounting bracket (11) has a positioning knob (15) threaded on both ends of its bottom, and a first damping shaft (12) is fixedly connected to the center of the top of the mounting bracket (11).

7. An LED tube that facilitates heat dissipation through air convection according to claim 6, characterized in that: A mounting plate (13) is fixedly connected to the top end of the first damping shaft (12). The mounting plate (13) has mounting holes (14) on its surface. The mounting bracket (11) is rotatably connected to the mounting plate (13) through the first damping shaft (12).

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