LED tube structure using gravity self-convection to accelerate heat dissipation

Abstract

The present invention discloses an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation, which relates to the technical field of heat dissipation lamp tube structures. It includes a lamp holder, a lamp cover, and an LED lamp body installed inside the lamp holder. It further includes: a heat dissipation component and an adjustment component arranged inside the lamp holder. When heat dissipation inside the lamp holder is required, based on the principle that hot air with a low density rises under the upward net buoyancy force and cold air with a high density sinks downward, natural air from the outside flows in through the air inlet, enters the low-position port through the ventilation openings on the sliding block, and then flows into the inside of the lamp holder through the openings on the connecting plate. After the natural air enters, it quickly fills the space at the bottom of the lamp holder. The original hot air inside the lamp holder rises and flows out through the heat dissipation openings, and the natural air fills the vacancy, prompting the heat to quickly move upward and be discharged. Moreover, the natural air is heated by the heat of the LED lamp body and becomes hot air, and the continuous input of natural air realizes the self-convection cycle heat dissipation inside the lamp holder.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation lamp tube structure technology, and in particular to an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation. Background Technology

[0002] LED tubes, also commonly known in the industry as LED fluorescent tubes, offer significant advantages over traditional fluorescent tubes in several aspects. They not only boast higher luminous efficacy (producing more luminous flux per unit of electricity) but also a longer lifespan, greatly reducing the frequency and cost of replacing light fixtures. Furthermore, LED tubes are more environmentally friendly, containing no harmful substances and aligning with modern green lighting principles.

[0003] However, despite the excellent performance of LED tubes in many aspects, heat dissipation remains a challenge. Currently, most LED lighting fixtures on the market rely primarily on the radiation and conduction mechanism of heat within the fixture. Specifically, the heat generated by the LED during operation is first conducted within the fixture through radiation and convection, and then dissipated to the external environment through the fixture's casing. However, this heat dissipation method has a significant drawback: the radiation and conduction efficiency of heat is relatively low. Due to the limited internal space of LED lighting fixtures and the varying thermal conductivity of materials, heat is often difficult to conduct quickly and effectively from the heat source to the heat sink.

[0004] This situation can easily lead to the inability to dissipate the heat generated by the LEDs in a timely manner, causing it to accumulate inside the lamp. Prolonged exposure to high temperatures not only accelerates the aging process of the LED chips and shortens their lifespan, but can also damage the wiring and components inside the lamp, such as melting the wiring or deforming the lamp components. These consequences not only increase the failure rate of LED lamps, but also raise the costs of repair and replacement. Summary of the Invention

[0005] The purpose of this invention is to address the problem that the radiation conduction of heat energy is inefficient for heat conduction, which easily leads to the accumulation of heat energy generated by LEDs that cannot be dissipated in time, easily causing the wiring or lamp components to melt, increasing the failure rate of LED lamps, and reducing the practicality of LED lamps. Therefore, this invention proposes an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation.

[0006] To achieve the above objectives, the present invention employs the following technology: an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation, comprising a lamp holder, a lamp cover and an LED lamp body installed inside the lamp holder, and further comprising: a heat dissipation component and an adjustment component disposed inside the lamp holder; The heat dissipation component includes a slot at the bottom of the lamp holder, a micro motor installed in the slot, and the output end of the micro motor extending out of the lamp holder and connecting to the rotating disk. A pusher is connected between the top of the lamp holder and the rotating disk. An air inlet is provided at the bottom of the lamp holder. A connecting plate is fixed to the inner wall of the lamp holder. A connecting frame is fixed to one side of the connecting plate. The connecting frame has a low-position port, a middle-position port and a high-position port inside. The micro motor starts and drives the rotating disk to rotate, which in turn pulls the pusher to move, aligning the pusher with one of the low-position port, middle-position port, or high-position port, thus dissipating heat at different positions of the LED lamp body.

[0007] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: The pushing component includes a fixing block fixed on the lamp holder, and a sliding block is slidably connected to the outer wall of the fixing block. The sliding block has ventilation openings inside, and the ventilation openings are respectively aligned with the low opening, the middle opening and the high opening.

[0008] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: An extension plate is fixed to one side of the sliding block, and an extension rod is fixed to the top of the extension plate. A positioning post is fixed to the top of the rotating disk, and the positioning post and the extension rod are connected by a sleeve rod.

[0009] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: The top of the lamp holder has a heat dissipation vent.

[0010] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: The inner wall of the low-position outlet is fixed with a connecting plate, the connecting plate has an opening inside, and a heat absorption tube is installed inside the connecting plate, with a flow port inside the heat absorption tube.

[0011] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: The inner wall of the high-position opening is fixed with several symmetrical inclined blocks.

[0012] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: The adjustment assembly includes a positioning plate fixed to the bottom of the heat dissipation vent, a sealing block that blocks the heat dissipation vent is slidably connected to the outer wall of the positioning plate, a movable plate is fixed to one side of the sealing block, and a connecting rod is connected between the movable plate and the extension rod.

[0013] As a further description of an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation as described above: The adjacent lamp holders are fixedly connected by screws.

[0014] In summary, due to the adoption of the above-mentioned LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation, the beneficial effects of this invention are: With the heat dissipation and adjustment components in place, when heat dissipation is required inside the lamp holder, based on the principle that hot air, which has a lower density, is pushed upward by net buoyancy and cold air, which has a higher density, sinks downward, outside natural air flows in through the air inlet, enters the low-position port through the ventilation port on the sliding block, and then flows into the lamp holder through the opening of the connecting plate. After entering, the natural air quickly fills the space at the bottom of the lamp holder, and the original hot air inside the lamp holder rises and flows out through the heat dissipation port. The natural air fills the gap, causing the heat to move upward and be discharged quickly. Moreover, the natural air is heated by the heat of the LED lamp body and becomes hot air. The continuous input of natural air realizes the self-convection circulation heat dissipation inside the lamp holder. The natural air inside the low-position opening will flow spirally along the heat absorption tube. The heat absorption tube is inside the lamp holder and absorbs a certain amount of heat. The natural air flowing inside it can effectively absorb heat. The spiral design extends the residence time and enhances the absorption effect. If the heat inside the lamp holder is concentrated in the upper middle area, and heat dissipation is required at different heights, the micro motor can be started. It drives the rotating disk to rotate and pulls the top positioning column. Its movement is transmitted to the extension rod through the sleeve rod, which in turn drives the sliding block to move on the fixed block, adjusting the ventilation opening to align with the middle or high position opening. When the vent is aligned with the middle vent, natural air enters and flows out and sinks, forming convection with the rising hot air to dissipate heat in the middle area; when aligned with the high vent, natural air flows into the high area more quickly due to the acceleration effect of the inclined block inside the high vent, accelerating the discharge of hot air from the high area. After the micro motor is started, its operation drives the rotating disk to rotate. The positioning column moves and the extension rod moves through the sleeve rod, which drives the sliding block to adjust the position of the ventilation port. At the same time, it drives the connecting rod to move. When the ventilation port moves towards the lower position, the connecting rod pulls the sealing block to reduce the opening area of ​​the heat dissipation port, which is conducive to the uniform discharge of heat when the heat is dissipated at the lower position. When the ventilation port moves towards the higher position, the sealing block moves away from the heat dissipation port to increase the opening area, improve the efficiency of heat dissipation, prevent the accumulation of heat at the higher position, and ensure uniform and efficient heat dissipation. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure according to the present invention is shown; Figure 2 A schematic diagram of the LED lamp body structure according to the present invention is shown; Figure 3 A schematic diagram of the internal structure of the lamp holder according to the present invention is shown; Figure 4 The present invention is shown Figure 3 Another perspective structural diagram; Figure 5 A cross-sectional schematic diagram of the heat dissipation assembly according to the present invention is shown; Figure 6 A cross-sectional schematic diagram of the connector frame according to the present invention is shown; Figure 7 The present invention is shown Figure 6 Enlarged view of a portion of point B in the middle; Figure 8 The present invention is shown Figure 4 A magnified view of a portion of point A in the middle.

[0016] Legend: 11. Lamp holder; 12. Lampshade; 13. LED lamp body; 20. Heat dissipation assembly; 21. Slot; 211. Micro motor; 212. Rotating disk; 213. Positioning post; 22. Fixing block; 221. Sliding block; 222. Vent; 223. Extension plate; 224. Extension rod; 225. Sleeve rod; 23. Air inlet; 24. Connecting plate; 241. Connecting frame; 242. Low-position port; 243. Middle-position port; 244. High-position port; 25. Heat dissipation port; 26. Connecting plate; 261. Heat absorption pipe; 27. Inclined block; 30. Adjustment component; 31. Positioning plate; 32. Sealing block; 33. Moving plate; 34. Connecting rod. Detailed Implementation

[0017] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a clear and complete description of an LED lamp tube structure utilizing gravity self-convection to accelerate heat dissipation. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1-8 As shown, the present invention provides an LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation: it includes a lamp holder 11, a lamp cover 12 and an LED lamp body 13 installed inside the lamp holder 11. Adjacent lamp holders 11 are fixedly connected by screws. By removing the screws, the lamp cover 12 can be removed for cleaning or replacement. Similarly, the LED lamp body 13 can be inspected or replaced. After completing the above operations, the screws are tightened to fix the adjacent lamp holders 11. The lamp holder 11, lamp cover 12 and LED lamp body 13 are installed vertically as shown in the figure. It also includes a heat dissipation component 20 and an adjustment component 30 disposed inside the lamp holder 11. like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the heat dissipation assembly 20 includes a slot 21 at the bottom of the lamp holder 11, in which a micro motor 211 is installed. The output end of the micro motor 211 extends out of the lamp holder 11 and connects to the rotating disk 212. A pushing member is connected between the top of the lamp holder 11 and the rotating disk 212. An air inlet 23 is provided at the bottom of the lamp holder 11. A connecting plate 24 is fixed to the inner wall of the lamp holder 11. A connecting frame 241 is fixed to one side of the connecting plate 24. The connecting frame 241 has a low-position opening 242, a middle-position opening 243, and a high-position opening 244 inside. The pushing member includes a fixing block 22 fixed to the lamp holder 11. A sliding block 221 is slidably connected to the outer wall of the fixing block 22. A ventilation opening 222 is provided inside the sliding block 221. A fan can be installed inside the ventilation opening 222, and the ventilation opening 222 is aligned with the low opening 242, the middle opening 243 and the high opening 244 respectively. An extension plate 223 is fixed on one side of the sliding block 221, and an extension rod 224 is fixed on the top of the extension plate 223. A positioning post 213 is fixed on the top of the rotating disk 212. The positioning post 213 and the extension rod 224 are connected by a sleeve rod 225. A heat dissipation opening 25 is opened on the top of the lamp holder 11. A connecting plate 26 is fixed on the inner wall of the output port of the low opening 242. An opening is opened inside the connecting plate 26, and a heat absorption pipe 261 is installed inside the connecting plate 26. A flow port is opened inside the heat absorption pipe 261. Several symmetrical inclined blocks 27 are fixed on the inner wall of the high opening 244. When heat dissipation is required inside the lamp holder 11, hot air, which has a relatively low density, will experience an upward net buoyancy under the influence of gravity. This force pushes the hot air upward. Conversely, cold air, which has a higher density, will sink under the influence of gravity. Based on this principle, outside natural air will flow in through the air inlet 23 and further enter the low-position port 242 through the ventilation port 222 opened on the sliding block 221. Subsequently, this natural air will flow through the low-position port 242 and flow into the interior of the lamp holder 11 through the opening on the connecting plate 26. Once natural air enters the lamp holder 11, it quickly fills the bottom space of the lamp holder 11. At the same time, the hot air that was originally inside the lamp holder 11 will gradually rise and eventually flow out through the heat dissipation vent 25. As the hot air is discharged, natural air will fill the gap left by the rising hot air, thereby causing the heat inside the lamp holder 11 to move upward and be discharged quickly. It is worth noting that after the natural air enters the lamp holder 11, it will be affected by the heat emitted by the LED lamp body 13, gradually heat up and become hot air. Through the continuous input of natural air, the lamp holder 11 achieves self-convection circulation heat dissipation. In addition, some of the natural air inside the low-position port 242 will also flow spirally along the heat absorption pipe 261. Since the heat absorption pipe 261 is originally inside the lamp holder 11, it has absorbed a certain amount of heat. The flow of natural air inside the heat absorption pipe 261 can more effectively absorb away this heat. At the same time, the spiral design of the heat absorption pipe 261 prolongs the residence time of natural air inside it, further enhancing the heat absorption effect of natural air. However, if the heat inside the lamp holder 11 is always concentrated in the upper middle area, it is necessary to dissipate heat at different heights inside the lamp holder 11. At this time, the micro motor 211 can be started to drive the rotating disk 212 to rotate. As the rotating disk 212 rotates, it will pull the positioning column 213 at the top. The movement of the positioning column 213 is transmitted to the extension rod 224 through the sleeve rod 225, which in turn drives the sliding block 221 on one side of the extension plate 223 to move on the fixed block 22. By adjusting the position of the sliding block 221, the ventilation port 222 can be aligned with the middle port 243 or the high port 244. When the vent 222 is aligned with the middle vent 243, natural air will enter the middle vent 243 through the vent 222 and flow out along the middle vent 243. The flowing natural air will sink and form convection with the rising hot air inside the lamp holder 11, thereby dissipating heat in the middle area of ​​the lamp holder 11. When the vent 222 is aligned with the high vent 244, natural air will enter the high vent 244 through the vent 222. Since the high vent 244 is equipped with a ramp 27, the natural air will be accelerated when passing through the ramp 27. The multi-segment ramp 27 design further enhances this acceleration effect, allowing natural air to flow into the high part of the lamp holder 11 more quickly, thereby accelerating the exhaust of hot air from the high area inside the lamp holder 11. This series of designs effectively dissipates heat from the low, medium, and high areas within the lamp holder 11, ensuring that the LED lamp body 13 maintains stable performance and lifespan even after long-term operation.

[0019] like Figure 1 , Figure 4 , Figure 8 As shown, the adjustment assembly 30 includes a positioning plate 31 fixed to the bottom of the heat dissipation port 25. A sealing block 32 that blocks the heat dissipation port 25 is slidably connected to the outer wall of the positioning plate 31. A movable plate 33 is fixed to one side of the sealing block 32. A connecting rod 34 is connected between the movable plate 33 and the extension rod 224. When the micro motor 211 is started, the micro motor 211 starts to run and drives the rotating disk 212 connected to it to rotate. As the rotating disk 212 continues to rotate, the positioning post 213 at its top is pulled and moves. The movement of the positioning post 213 is further transmitted to the extension rod 224 through the sleeve rod 225, so that the extension rod 224 moves accordingly. During the movement, the extension rod 224 not only drives the sliding block 221 on one side of the extension plate 223 to slide on the fixed block 22 to adjust the position of the vent 222, but also drives the connecting rod 34 to move together. Specifically, when the sliding block 221 moves the vent 222 toward the lower opening 242, the connecting rod 34 will simultaneously pull the closing block 32 connected to the moving plate 33, causing it to slide on the outside of the positioning plate 31. This action causes the closing block 32 to gradually approach and eventually reduce the opening area of ​​the heat dissipation vent 25. This design helps to keep the heat from being discharged from the heat dissipation vent 25 at a uniform speed when dissipating heat at a lower position. Conversely, when the sliding block 221 moves the vent 222 toward the high-position vent 244, the connecting rod 34 will again pull the moving plate 33 and the sealing block 32 in sync, causing the sealing block 32 to move away from the heat dissipation vent 25. In this way, the opening area of ​​the heat dissipation vent 25 increases, improving the efficiency of heat exhaust. Especially when the high-position vent 244 dissipates heat to the high area of ​​the lamp holder 11, this design can effectively prevent heat from accumulating at high positions, ensuring a more uniform and efficient heat dissipation effect.

[0020] Working principle: When heat dissipation is required inside the lamp holder 11, based on the principle that hot air with low density is pushed upward by net buoyancy and cold air with high density sinks downward, outside natural air flows in through the air inlet 23, enters the low position port 242 through the ventilation port 222 on the sliding block 221, and then flows into the lamp holder 11 through the opening on the connecting plate 26. After natural air enters the lamp holder 11, it quickly fills the bottom space. The original hot air inside the lamp holder 11 gradually rises and flows out through the heat dissipation vent 25. As the hot air is discharged, natural air fills the gap, causing the heat to rise and be discharged quickly. Moreover, after entering, the natural air is affected by the heat emitted by the LED lamp body 13 and gradually heats up and becomes hot air. By continuously inputting natural air, the lamp holder 11 achieves self-convection circulation heat dissipation. In addition, some of the natural air inside the low-position port 242 will flow spirally along the heat absorption tube 261. The heat absorption tube 261 is inside the lamp holder 11 and absorbs a certain amount of heat. The natural air flowing inside it can effectively absorb heat. At the same time, the spiral design prolongs the residence time of the natural air and enhances the absorption effect. If the heat inside the lamp holder 11 is concentrated in the upper middle area and heat dissipation is required at different heights, the micro motor 211 can be started to drive the rotating disk 212 to rotate. The rotating disk 212 pulls the top positioning column 213, and its movement is transmitted to the extension rod 224 through the sleeve rod 225, which in turn drives the sliding block 221 on one side of the extension plate 223 to move on the fixed block 22, adjusting the position of the ventilation port 222 to align it with the middle port 243 or the high port 244. When the vent 222 is aligned with the middle vent 243, natural air enters the middle vent 243 and flows out. The sinking natural air and the rising hot air form a convection, which dissipates heat in the middle area. When the vent 222 is aligned with the high vent 244, natural air enters the high vent 244. Due to the acceleration effect of the inclined block 27 inside the high vent 244, the natural air flows into the high place more quickly, which accelerates the discharge of hot air from the high place. After the micro motor 211 is started, its operation drives the rotating disk 212 to rotate. The positioning column 213 moves under tension, and the extension rod 224 moves through the sleeve rod 225. The extension rod 224 not only drives the sliding block 221 to slide and adjust the position of the vent 222, but also drives the connecting rod 34 to move. When the sliding block 221 drives the vent 222 to move towards the lower position vent 242, the connecting rod 34 pulls the sealing block 32 connected to the moving plate 33 to slide outside the positioning plate 31, reducing the opening area of ​​the heat dissipation vent 25, which is conducive to the uniform discharge of heat when the heat is dissipated at the lower position. When the sliding block 221 drives the vent 222 to move towards the higher position vent 244, the connecting rod 34 pulls the sealing block 32 away from the heat dissipation vent 25, increasing the opening area, improving the efficiency of heat dissipation, preventing the accumulation of heat at the higher position, and ensuring uniform and efficient heat dissipation.

[0021] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technology of the present invention, using the LED tube structure and inventive concept of accelerating heat dissipation by gravity self-convection, should be covered within the scope of protection of the present invention.

Claims

1. An LED lamp tube structure that utilizes gravity self-convection to accelerate heat dissipation, comprising a lamp holder (11), a lampshade (12) installed inside the lamp holder (11), and an LED lamp body (13), characterized in that, Also includes: Heat dissipation component (20) and adjustment component (30) are installed inside the lamp holder (11); The heat dissipation component (20) includes a slot (21) at the bottom of the lamp holder (11), a micro motor (211) is installed in the slot (21), and the output end of the micro motor (211) extends out of the lamp holder (11) and connects to the rotating disk (212). A pusher is connected between the top of the lamp holder (11) and the rotating disk (212), and an air inlet (23) is provided at the bottom of the lamp holder (11). A connecting plate (24) is fixed to the inner wall of the lamp holder (11), and a connecting frame (241) is fixed to one side of the connecting plate (24). The connecting frame (241) has a low port (242), a middle port (243) and a high port (244) inside. The micro motor (211) starts and drives the rotating disk (212) to rotate, and pulls the pusher to move, so that the pusher is aligned with one of the low position port (242), the middle position port (243) and the high position port (244), so as to dissipate heat at different positions of the LED lamp body (13).

2. The LED lamp tube structure for accelerating heat dissipation using gravity self-convection as described in claim 1, characterized in that, The pusher includes a fixing block (22) fixed on the lamp holder (11), and a sliding block (221) is slidably connected to the outer wall of the fixing block (22). The sliding block (221) has a ventilation opening (222) inside, and the ventilation opening (222) is aligned with the low opening (242), the middle opening (243) and the high opening (244) respectively.

3. The LED lamp tube structure for accelerating heat dissipation using gravity self-convection as described in claim 2, characterized in that, An extension plate (223) is fixed on one side of the sliding block (221), and an extension rod (224) is fixed on the top of the extension plate (223). A positioning post (213) is fixed on the top of the rotating disk (212), and the positioning post (213) and the extension rod (224) are connected by a sleeve rod (225).

4. The LED lamp tube structure for accelerating heat dissipation using gravity self-convection as described in claim 3, characterized in that, The top of the lamp holder (11) is provided with a heat dissipation vent (25).

5. The LED lamp tube structure for accelerating heat dissipation using gravity self-convection as described in claim 3, characterized in that, The inner wall of the low-position port (242) output port is fixed with a connecting plate (26), the connecting plate (26) has an opening, and a heat absorption tube (261) is installed inside the connecting plate (26), and a flow port is opened inside the heat absorption tube (261).

6. The LED lamp tube structure for accelerating heat dissipation using gravity self-convection as described in claim 5, characterized in that, The inner wall of the high-position opening (244) is fixed with several symmetrical inclined blocks (27).

7. The LED tube structure for accelerating heat dissipation using gravity self-convection as described in claim 3, characterized in that, The adjustment assembly (30) includes a positioning plate (31) fixed at the bottom of the heat dissipation port (25), a sealing block (32) that blocks the heat dissipation port (25) is slidably connected to the outer wall of the positioning plate (31), a moving plate (33) is fixed on one side of the sealing block (32), and a connecting rod (34) is connected between the moving plate (33) and the extension rod (224).

8. The LED tube structure for accelerating heat dissipation using gravity self-convection as described in claim 1, characterized in that, The adjacent lamp holders (11) are fixedly connected by screws.

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