Integrated heat-dissipation plastic-wrapped aluminum LED bulb lamp

Abstract

This invention discloses an integrated heat-dissipating plastic-coated aluminum LED bulb, belonging to the field of lighting technology. It includes a lamp body and lamp heads and lamp covers mounted at both ends of the lamp body. Two sets of air vents are formed on the lamp body, with cover plates rotatably mounted at the openings of the vents. A heat-conducting component is installed inside the lamp body, with a light source plate and a cooling fan mounted on it. An adjusting plate is rotatably mounted on the heat-conducting component, with cams mounted on the adjusting plate. Two sets of transmission components that contact the cams are mounted on the heat-conducting component. When the cooling fan is not activated, the cover plates automatically seal the air vents under their own weight / torsion spring action, preventing external dust from entering. When the cooling fan is activated, the cover plates are automatically lifted and the air vents are opened through the transmission adjustment of the adjusting plate and the transmission components, achieving airflow circulation and heat dissipation inside and outside the lamp.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more specifically, to an integrated heat dissipation plastic-coated aluminum LED bulb. Background Technology

[0002] With the rapid development of semiconductor lighting technology, LEDs, as the fourth generation of semiconductor lighting sources, have become the mainstream lighting product to replace traditional incandescent and fluorescent lamps due to their significant advantages such as energy efficiency, environmental friendliness, and long service life. Among them, LED bulbs with plastic-coated aluminum structures are widely used in both residential and commercial lighting scenarios because they combine the insulation of plastic shells with the high heat dissipation of aluminum components.

[0003] Existing LED bulbs with integrated cooling fans typically employ a normally open vent design. When the cooling fan is not activated, external dust, insects, and other contaminants can easily enter the bulb body through these vents, adhering to the semiconductor light source board, heat dissipation components, and circuit components. This not only reduces the heat exchange efficiency of the heat dissipation components but may also cause short circuits, poor connections, and other malfunctions. Therefore, we propose an integrated heat-dissipating plastic-coated aluminum LED bulb. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated heat dissipation plastic-coated aluminum LED bulb, which solves the technical problem that the open heat dissipation hole design in the prior art easily leads to the corrosion of the internal circuit of the lamp.

[0005] This invention provides an integrated heat dissipation plastic-coated aluminum LED bulb, including a lamp body and lamp holders and lamp covers installed at both ends of the lamp body; The lamp body has two sets of air holes formed on it, and the openings of the air holes are rotatably fitted with cover plates. The lamp body is equipped with a heat-conducting component, a light source plate and a heat dissipation fan are mounted on the heat-conducting component, an adjustment plate is rotatably mounted on the heat-conducting component, a cam is mounted on the adjustment plate, and two sets of transmission components that contact the cam are mounted on the heat-conducting component. The cooling fan blows air, causing the adjustment plate to deflect. The cam follows the rotation and drives the transmission assembly to lift the cover plate, allowing air to flow between the inside and outside of the lamp.

[0006] As a further description of the above technical solution, the lamp body includes an aluminum cup and a plastic shell wrapped around the outside of the aluminum cup. The air vent is formed on the plastic shell, and a through hole communicating with the air vent is opened on the aluminum cup. The end of the air vent is inclined.

[0007] As a further description of the above technical solution, the heat-conducting component includes an aluminum plate installed at the bottom of the aluminum cup, a light source board installed on the aluminum plate, and heat-dissipating silicone applied between the light source board and the aluminum plate. A support plate and several heat sinks are installed on the aluminum plate. A cooling fan is installed on the support plate. A partition is installed on the support plate. The aluminum cup, aluminum plate, support plate and partition are separated to form an air inlet chamber and an air outlet chamber. The air inlet chamber and the air outlet chamber are connected by the cooling fan.

[0008] As a further description of the above technical solution, the axis of the cooling fan is parallel to the axis of the air vent, and the heat sinks are distributed on both sides of the support plate, and their arrangement direction is parallel to the axis of the cooling fan.

[0009] As a further description of the above technical solution, the adjustment plate is located on the air outlet side of the cooling fan, the area of ​​the adjustment plate is larger than the air outlet area of ​​the cooling fan, and a reset torsion spring is fitted on the rotating shaft of the adjustment plate.

[0010] As a further description of the above technical solution, the transmission assembly includes a threaded rod that is slidably connected to the heat-conducting assembly. An elastic element for pulling the threaded rod is installed on the heat-conducting assembly. A roller is installed at one end of the threaded rod, and the roller contacts a cam.

[0011] As a further description of the above technical solution, a sleeve is threadedly connected to the threaded rod.

[0012] As a further description of the above technical solution, the inner diameter of the through hole is smaller than that of the air hole, an annular filter cotton is adhered inside the air hole, and a rigid mesh is installed on the annular filter cotton; the inner diameter of the rigid mesh on the inner side of the annular filter cotton is not smaller than the outer diameter of the sleeve.

[0013] As a further description of the above technical solution, it also includes a controller electrically connected to the light source board, on which a temperature sensor is mounted.

[0014] By adopting the above technical solution, the heat generated when the light source board is working is quickly conducted to the aluminum plate through the heat dissipation silicone. Part of the heat is transferred to the heat sink through the aluminum plate, and the other part is transferred to the plastic shell through the aluminum cup. The controller can adjust the number of LEDs on the light source board to switch between different power brightness levels. When the light source board operates at high power brightness for a long time, the temperature sensor detects that the temperature inside the lamp is higher than the set temperature. The cooling fan starts, the air blows the adjustment plate to deflect, the rotating shaft drives the column rod to rotate, the protrusion squeezes the roller, pushes the threaded rod to slide along the bushing and stretches the elastic element; the threaded rod drives the sleeve to move towards the air hole, lifts the cover plate to open the two air holes, and realizes the airflow between the inside and outside of the lamp. Airflow enters the intake chamber and carries away the heat inside. The cooling fan blows the airflow towards the regulating plate. The regulating plate deflects, and the airflow is guided downward by the regulating plate and blown towards the heat sink in the exhaust chamber. The airflow carries the heat on the heat sink and then blows it out through the through hole from the air hole, realizing airflow circulation, which greatly improves heat dissipation efficiency and avoids overheating damage to the light source board. The partition structure formed by the partition and the support plate can effectively prevent the hot airflow in the exhaust chamber from flowing back to the intake chamber. After the cooling fan stops running, the reset torsion spring drives the adjusting plate to reset to the state of abutting against the limit block, the elastic element pulls the threaded rod to reset, the sleeve retracts, and the cover plate automatically seals the air hole under its own weight or with the assistance of the torsion spring.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. This invention adopts a one-piece injection molding process for plastic-coated aluminum. The outer plastic shell achieves a fully insulated design for the lamp, completely eliminating the risk of electric shock and greatly improving safety. The inner aluminum cup and the highly heat-dissipating plastic shell form an aluminum-plastic composite heat dissipation channel, which can quickly conduct the heat of the light source to the external environment.

[0016] 2. When the cooling fan of this invention is not started, the cover plate automatically seals the air vents under its own weight / torsion spring to prevent external dust from entering; when the cooling fan is started, the cover plate is automatically lifted to open the air vents through the transmission adjustment of the adjustment plate and the transmission component, so as to realize the circulation of airflow inside and outside the lamp for heat dissipation.

[0017] 3. This invention constructs a multi-stage heat conduction path consisting of a light source board, thermal silicone, an aluminum plate, an aluminum cup, and a plastic shell, ensuring rapid heat transfer; the cooling fan axis is set parallel to the heat sink, and with the partition design of the air inlet and outlet chambers, the airflow flows without resistance along the gaps in the heat sink, while avoiding hot air backflow, greatly improving heat dissipation efficiency; the adjustment plate can guide the airflow entering the outlet chamber towards the heat sink, thereby increasing the heat dissipation effect of the heat sink.

[0018] 4. The adjusting plate of this invention precisely directs the airflow blown by the cooling fan to the heat sink area, enhancing the efficiency of heat removal; the adjusting plate drives the column and protrusion to squeeze the roller through wind deflection, triggering the transmission component to open the air hole, realizing the intelligent linkage of the heat dissipation system; the design of the reset torsion spring and elastic element ensures that the adjusting plate can be pushed to deflect when the cooling fan starts, and can automatically reset after stopping, driving the cover plate to block the air hole, reducing dust accumulation inside the lamp, effectively protecting the internal components of the lamp, and improving service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an integrated heat dissipation plastic-coated aluminum LED bulb according to a preferred embodiment of the present invention; Figure 2This is a cross-sectional view of an integrated heat-dissipating plastic-coated aluminum LED bulb according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the installation position of the transmission component of an integrated heat-dissipating plastic-coated aluminum LED bulb disclosed in a preferred embodiment of the present invention; Figure 4 An integrated heat-dissipating plastic-coated aluminum LED bulb, as disclosed in a preferred embodiment of the present invention. Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the heat-conducting component connection structure of an integrated heat-dissipating plastic-coated aluminum LED bulb disclosed in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the heat sink installation position of an integrated heat dissipation plastic-coated aluminum LED bulb disclosed in a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the transmission component structure of an integrated heat dissipation plastic-coated aluminum LED bulb disclosed in a preferred embodiment of the present invention; Figure 8 This is a cam drive principle diagram of an integrated heat dissipation plastic-coated aluminum LED bulb disclosed in a preferred embodiment of the present invention.

[0020] The following are the labeling instructions in the diagram: 1. Lamp holder; 2. Lamp body; 3. Lamp cover; 21. Plastic housing; 22. Aluminum cup; 23. Air vent; 24. Connecting shaft; 25. Cover plate; 26. Through hole; 10. Annular filter cotton; 9. Controller; 4. Heat conduction component; 41. Aluminum plate; 5. Light source plate; 42. Support plate; 43. Heat sink; 6. Cooling fan; 7. Adjustment plate; 72. Reset torsion spring; 73. Column rod; 74. Protrusion; 8. Transmission component; 81. Threaded rod; 82. Bushing; 83. Fixing plate; 84. Elastic element; 85. Roller; 86. Sleeve; 44. Limiting block; 45. Partition plate; 46. Air inlet chamber; 47. Air outlet chamber. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0022] Reference Figures 1 to 8This embodiment discloses an integrated heat-dissipating plastic-coated aluminum LED bulb, including a lamp holder 1, a lamp body 2, and a lamp cover 3. The lamp body 2 adopts a plastic-coated aluminum process and includes a plastic shell 21. The lamp cover 3 is threaded to the bottom of the plastic shell 21, or it can be fixed by snap-fit. An aluminum cup 22 is fixedly connected inside the plastic shell 21. When the plastic shell 21 is injection molded, the aluminum cup 22 is first placed in the injection mold. During injection molding, the molten material can wrap around the outside of the aluminum cup 22, thereby forming an integrated heat-dissipating plastic-coated aluminum structure. The integrated heat-dissipating plastic-coated aluminum structure can achieve effective insulation of the lamp, thereby improving the safety of the lamp. The plastic shell 21 is made of a material with better heat dissipation effect, which improves heat conduction and heat dissipation efficiency.

[0023] Two sets of air vents 23 are formed on the plastic housing 21. A connecting shaft 24 is installed on the upper side of the air vents 23, and a cover plate 25 is rotatably installed on the connecting shaft 24. The ends of the air vents 23 are inclined, with an angle of 5°-15° with the horizontal plane. The cover plate 25 can automatically reset and seal the air vents 23 under its own weight, thereby preventing external dust particles from entering the lamp body 2. A torsion spring can be installed on the connecting shaft 24 to assist the cover plate 25 in resetting. A through-hole communicating with the air vents 23 is opened on the aluminum cup 22. Hole 26, the inner diameter of the through hole 26 is smaller than that of the air hole 23. The air hole 23 is filled with annular filter cotton 10. Both the inner and outer diameter surfaces of the annular filter cotton 10 are provided with rigid mesh to reduce the deformation of the annular filter cotton 10. The annular filter cotton 10 abuts against the aluminum cup 22. The outer diameter surface of the annular filter cotton 10 can be adhesively fixed to the inner wall of the air hole 23 to reduce the movement of the annular filter cotton 10. The annular filter cotton 10 needs to have a certain flame retardancy to prevent combustion when the bulb lamp overheats.

[0024] Reference Figure 2 , Figure 5 and Figure 6A heat-conducting component 4 is installed inside the lamp body 2. The heat-conducting component 4 includes an aluminum plate 41, which is fixedly installed at the bottom of the aluminum cup 22. The aluminum plate 41 is installed with bolt holes to prevent mistaken installation and ensure accuracy. A light source plate 5 is fixedly installed at the bottom of the aluminum plate 41. Thermal silicone is applied between the light source plate 5 and the aluminum plate 41 to facilitate the heat transfer of the heating components on the light source plate 5 to the aluminum plate 41. A support plate 42 and several heat sinks 43 are fixedly installed on the aluminum plate 41. A cooling fan 6 is fixedly installed on the support plate 42. The axis of the cooling fan 6 is parallel to the axis of the air vent 23. The heat sinks 43 are distributed on both sides of the support plate 42 and are arranged in a direction parallel to the axis of the cooling fan 6. When the cooling fan 6 drives the airflow, the heat in the gaps between the heat sinks 43 arranged in the same direction as the airflow can be quickly dissipated, effectively reducing airflow resistance and improving heat dissipation. A limit block 44 is fixedly installed on the support plate 42, and a partition 45 is fixedly installed on the top of the support plate 42. During installation, the heat-conducting component 4 is inserted from the bottom of the aluminum cup 22. When the aluminum plate 41 and the bottom of the aluminum cup 22 abut against each other, they are fixed together with screws. At this time, the partition plate 45 abuts against the inner wall of the aluminum cup 22. (Refer to...) Figure 2 As shown, at this time, the aluminum cup 22, aluminum plate 41, support plate 42 and partition plate 45 form relatively independent air inlet chamber 46 and air outlet chamber 47, which are connected by cooling fan 6. The aluminum plate 41, support plate 42, heat sink 43 and partition plate 45 are preferably made of aluminum, which can accelerate the heat conduction of the light source plate 5. The aluminum plate 41 and aluminum cup 22 are in contact, which can also effectively transfer heat to aluminum cup 22 and plastic shell 21, further improving heat dissipation efficiency.

[0025] Reference Figure 2 , Figure 5 , Figure 7 and Figure 8 The bulb lamp also includes an adjustment plate 7, which is rotatably mounted on a support plate 42 via a pivot. The adjustment plate 7 is located on the air outlet side of the cooling fan 6, with a distance of 1-2 cm between them. The area of ​​the adjustment plate 7 is larger than the air outlet area of ​​the cooling fan 6. The adjustment plate 7 is made of lightweight material to reduce the difficulty of airflow. When there is no airflow, the adjustment plate 7 is in a free-falling state, perpendicular to the axis of the cooling fan 6. When the cooling fan 6 is started, the adjustment plate 7 will deflect under the airflow. A reset torsion spring 72 is fitted on the pivot of the adjustment plate 7. One end of the reset torsion spring 72 is fixedly connected to the pivot, and the other end is fixedly connected to the support plate 42. The reset torsion spring 72 is used to assist the adjustment plate 7 in returning to a free-falling state. At this time, the adjustment plate 7 abuts against the limiting block 44, which can limit the adjustment plate 7. A column rod 73 is fixedly mounted on the pivot of the adjustment plate 7. Two sets of protrusions 74 are fixedly mounted on the column rod 73. The protrusions 74 are symmetrically distributed about the axis of the column rod 73.

[0026] The bulb lamp also includes two sets of transmission components 8. The transmission components 8 include a threaded rod 81 and a bushing 82 fixedly installed on the support plate 42. The threaded rod 81 slides axially on the support plate 42 through sliding engagement with the bushing 82. A fixing plate 83 is fixedly installed on the threaded rod 81, and an elastic element 84 is fitted on the threaded rod 81. One end of the elastic element 84 is fixedly connected to the fixing plate 83, and the other end is fixedly connected to the bushing 82. A roller 85 is rotatably installed on the end of the threaded rod 81 near the column rod 73. The elastic element 84 is used to drive the threaded rod 81 to move towards the column rod 73, so that the roller 85 abuts against the column rod 73. When the adjusting plate 7 is in a free-falling state, the roller 85 contacts the column rod 73. When the adjusting plate 7 is deflected by the wind, the protrusion 74 will contact the roller 85, causing the threaded rod 81 to slide and stretch the elastic element 84.

[0027] A sleeve 86 is threaded onto the threaded rod 81. A guide hole coaxial with the threaded rod 81 is provided at the bottom of the partition plate 45. The sleeve 86 fits into the guide hole, allowing it to be fitted inside and movably connected to the partition plate 45. Before the heat-conducting component 4 is installed into the aluminum cup 22, the sleeve 86 needs to be screwed to the retracted state with the minimum distance between it and the roller 85. After the aluminum plate 41 is installed at the bottom of the aluminum cup 22, the threaded rod 81 and the air hole 23 are coaxial. Using a tool, the sleeve 86 is inserted into the end of the air hole 23 and rotated to extend it to the opening of the air hole 23. When the threaded rod 81 moves axially, the sleeve 86 can lift the cover plate 25, thereby opening the air hole 23, allowing airflow between the inside and outside of the bulb lamp and improving the heat dissipation effect. It should be noted that the inner diameter of the rigid mesh on the inner side of the annular filter cotton 10 is not less than the outer diameter of the sleeve 86, thereby reducing the moving resistance of the sleeve 86. The torque generated by the wind force of the cooling fan 6 on the adjusting plate 7 must be greater than the sum of the torsional torque of the reset torsion spring 72 and the resistance torque transmitted by the elastic force of the elastic element 84 through the transmission assembly, so as to ensure that the cooling fan 6 can push the adjusting plate 7 to deflect when it is turned on, thereby driving the transmission assembly 8 to lift the cover plate 25.

[0028] The bulb lamp also includes a controller 9 electrically connected to the light source board 5. The controller 9 controls the number of lamp beads turned on on the light source board 5 to achieve different power brightness. This is existing technology and will not be described in detail here. A temperature sensor is installed on the light source board 5 to monitor the temperature inside the bulb lamp. When the temperature reaches the set threshold, the cooling fan 6 turns on to provide auxiliary heat dissipation.

[0029] Working principle When the light source board 5 is working, it generates heat, which is quickly conducted to the aluminum plate 41 through the heat dissipation silicone. Part of the heat is transferred to the heat sink 43 through the aluminum plate 41, and the other part is transferred to the plastic housing 21 through the aluminum cup 22. The controller 9 can adjust the number of LEDs on the light source board 5 to switch between different power brightness levels. When the light source board 5 operates at high power brightness for a long time, the temperature sensor detects that the temperature inside the lamp is higher than the set temperature. The cooling fan 6 starts, the wind blows the adjustment plate 7 to deflect, the rotating shaft drives the column rod 73 to rotate, the protrusion 74 squeezes the roller 85, pushes the threaded rod 81 to slide along the bushing 82 and stretches the elastic element 84. The threaded rod 81 drives the sleeve 86 to move towards the air hole 23, lifts the cover plate 25 to open the two air holes 23, and realizes the airflow communication between the inside and outside of the lamp.

[0030] Airflow enters the intake chamber 46 and carries away the heat inside. The cooling fan 6 blows the airflow toward the regulating plate 7. The regulating plate 7 deflects, and the airflow is guided downward by the regulating plate 7 and blown toward the heat sink 43 in the exhaust chamber 47. The airflow carries the heat on the heat sink 43 and then blows it out through the through hole 26 and the air hole 23, realizing airflow circulation, greatly improving heat dissipation efficiency, and avoiding overheating damage to the light source board 5. The partition structure formed by the partition plate 45 and the support plate 42 can effectively prevent the hot airflow in the exhaust chamber 47 from flowing back to the intake chamber 46.

[0031] After the cooling fan 6 stops running, the reset torsion spring 72 drives the adjusting plate 7 to return to the state of abutting against the limit block 44. The elastic element 84 pulls the threaded rod 81 to return to its original position, the sleeve 86 retracts, and the cover plate 25 automatically seals the air hole 23 under its own weight or with the assistance of the torsion spring. The air hole 23 automatically opens / closes as the cooling fan 6 runs, enhancing air circulation and improving efficiency during heat dissipation, and blocking the entry of external dust when the machine is stopped, reducing the corrosion of the lamp's interior by external dust and extending the lamp's service life.

[0032] 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 substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated heat-dissipating plastic-coated aluminum LED bulb, characterized in that: Includes a lamp body (2) and lamp holders (1) and lamp covers (3) installed at both ends of the lamp body (2); The lamp body (2) has two sets of air holes (23) formed on it, and the opening of the air holes (23) is rotatably installed with a cover plate (25). The lamp body (2) is equipped with a heat conduction component (4), a light source plate (5) and a heat dissipation fan (6) are installed on the heat conduction component (4), an adjustment plate (7) is rotatably installed on the heat conduction component (4), a cam is installed on the adjustment plate (7), and two sets of transmission components (8) that contact the cam are installed on the heat conduction component (4). The cooling fan (6) blows the adjustment plate (7) to deflect, and the cam follows the rotation and drives the transmission component (8) to lift the cover plate (25), so that the air inside and outside the lamp body (2) can be connected.

2. The integrated heat-dissipating plastic-aluminum clad LED bulb lamp according to claim 1, wherein: The lamp body (2) includes an aluminum cup (22) and a plastic shell (21) wrapped around the outside of the aluminum cup (22). The air hole (23) is formed on the plastic shell (21). The aluminum cup (22) has a through hole (26) that communicates with the air hole (23). The end of the air hole (23) is inclined.

3. The integrated heat-dissipating plastic-aluminum clad LED bulb lamp according to claim 2, wherein: The heat-conducting component (4) includes an aluminum plate (41) installed at the bottom of the aluminum cup (22), a light source plate (5) installed on the aluminum plate (41), and heat-dissipating silicone is applied between the light source plate (5) and the aluminum plate (41). A support plate (42) and several heat sinks (43) are installed on the aluminum plate (41). A cooling fan (6) is installed on the support plate (42). A partition (45) is installed on the support plate (42). The aluminum cup (22), aluminum plate (41), support plate (42) and partition (45) are separated to form an air inlet chamber (46) and an air outlet chamber (47). The air inlet chamber (46) and the air outlet chamber (47) are connected through the cooling fan (6).

4. The integrated heat dissipation plastic-coated aluminum LED bulb according to claim 3, characterized in that: The axis of the cooling fan (6) is parallel to the axis of the air hole (23), and the heat sink (43) is distributed on both sides of the support plate (42) and is arranged in a direction parallel to the axis of the cooling fan (6).

5. The integrated heat-dissipating plastic-coated aluminum LED bulb according to claim 1, characterized in that: The adjustment plate (7) is located on the air outlet side of the cooling fan (6). The area of ​​the adjustment plate (7) is larger than the air outlet area of ​​the cooling fan (6). A reset torsion spring (72) is mounted on the rotating shaft of the adjustment plate (7).

6. The integrated heat dissipation plastic-coated aluminum LED bulb according to claim 1, characterized in that: The transmission assembly (8) includes a threaded rod (81) that is slidably connected to the heat-conducting assembly (4). An elastic element (84) for pulling the threaded rod (81) is installed on the heat-conducting assembly (4). A roller (85) is installed at one end of the threaded rod (81) and the roller (85) contacts the cam.

7. The integrated heat-dissipating plastic-coated aluminum LED bulb according to claim 6, characterized in that: A sleeve (86) is threaded onto the threaded rod (81).

8. The integrated heat dissipation plastic-coated aluminum LED bulb according to claim 2, characterized in that: The inner diameter of the through hole (26) is smaller than that of the air hole (23). An annular filter cotton (10) is adhered inside the air hole (23). A rigid mesh is installed on the annular filter cotton (10). The inner diameter of the rigid mesh inside the annular filter cotton (10) is not smaller than the outer diameter of the sleeve (86).

9. The integrated heat-dissipating plastic-coated aluminum LED bulb according to any one of claims 1-8, characterized in that: It also includes a controller (9) electrically connected to the light source board (5), on which a temperature sensor is installed.

Images