LED lighting lamp with heat dissipation cooling structure

Abstract

This invention relates to the field of LED lighting fixture heat dissipation technology, and more particularly to an LED lighting fixture with a heat dissipation and cooling structure. The mounting plate has symmetrically arranged guide pillars at its bottom, with positioning pillars slidably mounted inside each guide pillar. A protective shell is located at the bottom of both positioning pillars, and a light-transmitting plate is installed at the bottom of the protective shell. A substrate is located inside the protective shell, and the substrate has a regularly arranged concave-convex structure. Several LED lights are arranged in a linear array at each protrusion position on the substrate. Reflectors are installed on both sides of the inner wall of the protective shell. This invention utilizes a fan inside the protective shell and an arc-shaped air guide plate to draw in cool air and direct it towards the LED light area. Forced convection cooling is achieved through heat dissipation fins and heat pipes. A cooler further reduces the airflow temperature, significantly enhancing heat dissipation. Simultaneously, the airbag, guide rods, and baffles work together to automatically adjust the ventilation volume according to temperature changes, achieving adaptive heat dissipation. Overall, the heat dissipation efficiency is high, and the temperature control effect is excellent.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology for LED lighting fixtures, and more particularly to an LED lighting fixture with a heat dissipation and cooling structure. Background Technology

[0002] LED lighting fixtures have been widely used in indoor lighting, outdoor lighting, industrial lighting and special lighting due to their advantages such as energy saving, environmental protection, long life and fast response. With the continuous improvement of LED chip integration and power density, heat dissipation has become a key factor restricting the performance and reliability of lighting fixtures. During the operation of LED lamps, most of the input electrical energy is converted into heat. If the heat cannot be dissipated in time, it will lead to an increase in junction temperature, which in turn will cause a decrease in luminous efficacy, color temperature drift, shortened life and even chip burnout.

[0003] Currently, most common LED lighting fixture heat dissipation solutions on the market adopt a single air-cooling or natural convection heat dissipation structure, which has limited heat dissipation efficiency and is difficult to meet the continuous heat generation requirements of high-power lamps. In addition, the existing fixed opening ventilation design cannot automatically adjust the ventilation volume according to the real-time heat generation status of the lamp, resulting in excessive heat dissipation at low temperatures or insufficient heat dissipation at high temperatures. Furthermore, there is a lack of pre-treatment cooling of the incoming airflow. Simple passive heat dissipation or single air-cooling method has limited heat dissipation efficiency and is difficult to meet the reliable heat dissipation requirements of high-power LED lamps that generate continuous heat. Summary of the Invention

[0004] In order to overcome the shortcomings of existing LED lighting fixtures, such as low heat dissipation efficiency, inability to automatically adjust ventilation, lack of airflow pre-cooling, and difficulty in meeting the reliable heat dissipation requirements of high-power lamps, this invention provides an LED lighting fixture with a heat dissipation and cooling structure.

[0005] The technical solution of this invention is: an LED lighting fixture with a heat dissipation and cooling structure, comprising: The mounting plate has symmetrical guide posts at its bottom. Each guide post has a slidable positioning post inside it. The bottom of the two positioning posts is fitted with a protective shell. The bottom of the protective shell has a light-transmitting plate. Inside the protective shell is a base plate with a regular concave-convex structure. Each protrusion on the base plate has a linear array of LED lights. Reflectors are installed on both sides of the inner wall of the protective shell, and both reflectors are tilted towards the LED lights. Both sides of the inner wall of the protective shell are fitted with air-guiding components for directional airflow and heat dissipation. The right side of the outer wall of the protective shell is fitted with a cooling component for air cooling. The bottom of the inner wall of the protective shell is fitted with a ventilation component for adaptive opening and closing ventilation to match the heating state of the lamps.

[0006] Preferably, the air guiding assembly includes a protective cover, a fan, heat dissipation fins, a heat conduction channel, a heat dissipation pipe, and an air guide plate. Protective covers are provided on both sides of the inner wall of the protective housing. A fan is provided inside each of the two protective covers. Heat dissipation fins are provided inside the protective housing. A heat conduction channel is provided inside the protective housing and is connected and communicates with the protective cover. A heat dissipation pipe is symmetrically provided in each recess on the top of the substrate. A rectangular through hole corresponding to the LED light is opened on both sides of each heat dissipation pipe. Each heat dissipation pipe is connected and communicates with the heat conduction channel. An air guide plate is provided inside each of the two protective covers.

[0007] Preferably, the cooling component includes a cooler and a cooling pipe. The cooler is located on the right side of the protective shell. The cooler is connected to and communicates with the cooling pipe, which runs through the heat conduction channel and abuts against two air guide plates.

[0008] Preferably, the ventilation assembly includes a mounting cover, guide rods, connecting plates, air bladders, springs, and baffles. The mounting cover is located in the center of the base plate. Guide rods are symmetrically arranged on the inner wall of the mounting cover. Connecting plates are symmetrically and slidably connected to the inner wall of the mounting cover. Each connecting plate is slidably connected to two guide rods. An air bladder is placed between the two connecting plates. Springs are symmetrically connected between the inner wall of the mounting cover and the two connecting plates. Each spring is wound around a corresponding guide rod. Multiple guide oblique holes are opened on each connecting plate. A baffle is slidably connected to the rectangular through hole of each heat dissipation pipe. Each baffle is provided with a pin, and each pin slides inside the corresponding guide oblique hole.

[0009] Preferably, it also includes a placement plate and magnetic strips. The protective shell is symmetrically provided with placement plates, and four magnetic strips are provided between each of the two placement plates and the protective shell, with corresponding magnetic strips adsorbing each other.

[0010] Preferably, the device also includes a dual-axis motor, a worm, a lead screw, and a worm wheel. The dual-axis motor is located at the bottom of the mounting plate, and worms are installed on both ends of the output shaft of the dual-axis motor. Lead screws are symmetrically and rotatably connected to the bottom of the mounting plate. Worm wheels are installed on the top of the two lead screws, and the two worm wheels mesh with the corresponding worms. The lead screws are threadedly connected to the positioning pins.

[0011] Preferably, the heat dissipation fins are housed within the internal space of the heat conduction channel, and the heat dissipation fins are arranged around the outer circumferential position of the substrate, with the heat dissipation fins seamlessly attached to the inner wall of the heat conduction channel.

[0012] As a preferred option, the air guide plates adopt an arc-shaped bending structure, with both air guide plates bending and converging towards the center of the protective shell, and the two air guide plates facing the air outlet of the fan below.

[0013] Preferably, the airbag is made of silicone rubber.

[0014] Preferably, the heat dissipation fins are made of aluminum alloy.

[0015] Beneficial effects: 1. The present invention uses a fan inside the protective cover and an arc-shaped air guide plate to draw in cold air and direct it to the LED light area. Forced convection cooling is achieved through heat dissipation fins and heat dissipation pipes. The cooler, in conjunction with condensation, further reduces the airflow temperature and significantly enhances heat dissipation. At the same time, the airbag, guide rod, and baffle are linked together and can automatically adjust the ventilation volume according to temperature changes to achieve adaptive heat dissipation. The overall heat dissipation efficiency is high and the temperature control effect is good.

[0016] 2. This invention uses magnetic adsorption plates to connect the placement plate, which contains filter materials such as activated carbon. Before entering the protective cover, air flows through the filter layer, and dust, moisture and harmful gases are adsorbed, thus providing clean air and preventing impurities from accumulating on the heat sink fins and LED light surface.

[0017] 3. This invention uses a dual-axis motor to drive the worm gear, worm wheel, and lead screw to rotate, which in turn drives the positioning column to slide along the guide column, so that the protective shell can be smoothly lowered to the predetermined lighting height. After the lighting is finished, it is reset in the opposite direction, thus achieving the effect of adjustable lighting height and easy installation and maintenance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the mounting plate, guide post, and positioning post of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the protective cover, fan, and heat dissipation fins of the present invention.

[0021] Figure 4 This is a partial cross-sectional schematic diagram of the cooler and cooling pipe components of the present invention.

[0022] Figure 5 This is a partial cross-sectional view of the heat dissipation pipe and air guide plate components of the present invention.

[0023] Figure 6 For the present invention Figure 5 Enlarged diagram of point A in the middle.

[0024] Figure 7 This is a partial cross-sectional schematic diagram of the magnetic suction plate and placement plate of the present invention.

[0025] Figure 8 This is a partial cross-sectional schematic diagram of the worm, lead screw, and worm wheel components of the present invention.

[0026] The markings in the attached diagram are: 1-Mounting plate, 11-Guide post, 12-Positioning post, 13-Protective shell, 14-Light-transmitting plate, 15-Base plate, 16-LED light, 17-Reflector, 2-Protective cover, 21-Fan, 22-Heat dissipation fins, 23-Heat conduction channel, 24-Heat dissipation pipe, 25-Air guide plate, 3-Refrigerator, 31-Cooling pipe, 4-Mounting cover, 41-Guide rod, 42-Connecting plate, 43-Airbag, 44-Spring, 45-Baffle, 5-Magnetic suction plate, 51-Placement plate, 6-Dual-axis motor, 61-Worm gear, 62-Lead screw, 63-Worm wheel. Detailed Implementation

[0027] Example 1: An LED lighting fixture with a heat dissipation and cooling structure, such as Figures 1-8 As shown, the assembly includes a mounting plate 1, guide posts 11, positioning posts 12, a protective shell 13, a light-transmitting plate 14, a substrate 15, LED lights 16, a reflector 17, an air guide assembly, a cooling assembly, and a ventilation assembly. Guide posts 11 are symmetrically fixedly mounted on the bottom of the mounting plate 1. Positioning posts 12 are slidably fitted inside each of the two guide posts 11. The protective shell 13 is mounted on the bottom of both positioning posts 12. Ventilation holes are provided on both sides of the top of the protective shell 13. A light-transmitting plate 14 is fixedly mounted on the bottom of the outer wall of the protective shell 13, and a light-transmitting plate 14 is fixedly mounted on the bottom of the inner wall of the protective shell 13. The substrate 15 is configured with a regular concave-convex structure. Several LED lights 16 are installed in a linear array at each protrusion of the substrate 15. Reflectors 17 are fixedly installed on both the front and rear sides of the inner wall of the protective shell 13. Both reflectors 17 are tilted towards the LED lights 16. Air guide components for directional airflow and heat dissipation are installed on the left and right sides of the inner wall of the protective shell 13. A cooling component for air cooling is installed on the right side of the outer wall of the protective shell 13. A ventilation component for adaptive opening and closing ventilation and matching the heating state of the lamps is installed at the bottom of the inner wall of the protective shell 13.

[0028] like Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, the air guiding assembly includes a protective cover 2, a fan 21, heat dissipation fins 22, a heat conduction channel 23, a heat dissipation pipe 24, and an air guide plate 25. Protective covers 2 are installed on both the left and right sides of the inner wall of the protective shell 13. A fan 21 is bolted to the center of the inner wall of each of the two protective covers 2. Heat dissipation fins 22 are installed at the bottom of the inner wall of the protective shell 13. The heat dissipation fins 22 are made of aluminum alloy, which is lightweight, low-cost, and easy to extrude, facilitating processing and use. A heat conduction channel 23 is installed at the bottom of the inner wall of the protective shell 13, connecting and communicating with the protective cover 2. Heat dissipation pipes are symmetrically installed on each recessed area at the top of the base plate 15. Heat pipe 24, each heat pipe 24 has rectangular through holes on both the front and rear sides corresponding to LED lights 16. Each heat pipe 24 is connected and communicates with the heat conduction channel 23. The top of the inner wall of the two protective covers 2 is equipped with air guide plates 25. The air guide plates 25 adopt an arc-shaped bending structure. Both air guide plates 25 are bent and converged towards the center of the inner part of the protective shell 13. The two air guide plates 25 are respectively facing the air outlet of the fan 21 below. The heat dissipation fins 22 are housed in the inner space of the heat conduction channel 23. The heat dissipation fins 22 are arranged around the outer circumferential position of the substrate 15. The heat dissipation fins 22 are seamlessly attached to the inner wall of the heat conduction channel 23.

[0029] When the light needs to be turned on, the operator first connects the power supply to the LED light 16. The LED light 16 starts to emit light, and the light is reflected by the reflector 17 and then shines outward through the light-transmitting plate 14 to achieve the lighting function. The LED light 16 generates a lot of heat when it is working. The heat is first transferred to the substrate 15. The substrate 15 is set with a regular concave-convex structure. The LED light 16 is installed on the protrusions, and the heat dissipation pipe 24 is connected to the concave parts. The heat is further transferred to the heat dissipation fins 22 housed inside the heat conduction channel 23, and then conducted to the heat dissipation pipe 24. The heat dissipation fins 22 are arranged around the outer circumference of the substrate 15 and fit seamlessly with the inner wall of the heat conduction channel 23, so that the heat can be quickly diffused throughout the entire heat conduction channel. In the space of channel 23, efficient heat diffusion is achieved. At this time, the fans 21 inside the left and right protective covers 2 are started. The fans 21 draw the external cold air into the protective cover 2. When the airflow passes through the air guide plate 25, since the air guide plate 25 adopts an arc-shaped bending structure and bends and converges towards the center of the protective shell 13, the two air guide plates 25 are respectively facing the air outlet of the lower fan 21. Therefore, the airflow is effectively guided to flow towards the area where the LED light 16 is located. The cold air enters the heat conduction channel 23 from the protective cover 2, flows through the heat dissipation fins 22 and heat dissipation pipes 24, and achieves forced convection cooling. Finally, the airflow is discharged through the ventilation hole at the top of the protective shell 13 to achieve smooth airflow.

[0030] like Figure 4 , Figure 5 and Figure 7As shown, the cooling component also includes a cooler 3 and a cooling pipe 31. The cooler 3 is installed on the right side of the protective shell 13 by bolts. The cooler 3 is connected to and communicates with the cooling pipe 31. The cooling pipe 31 passes through the heat conduction channel 23 and contacts the two air guide plates 25.

[0031] While the fan 21 is working, the cooling component is activated and the cooler 3 starts to run. The refrigerant inside 3 circulates along the cooling pipe 31. The cooling pipe 31 passes through the heat conduction channel 23 and contacts the air guide plates 25 on both sides, thereby cooling the air flowing through the heat conduction channel 23 and the air near the air guide plates 25. At the same time, it further reduces the temperature of the airflow entering the heat dissipation pipe 24, significantly enhancing the heat dissipation effect.

[0032] like Figure 6 As shown, the ventilation assembly also includes a mounting cover 4, guide rods 41, connecting plates 42, airbags 43, springs 44, and baffles 45. The mounting cover 4 is installed in the center of the base plate 15. Guide rods 41 are symmetrically welded to the inner wall of the mounting cover 4. Connecting plates 42 are symmetrically connected to the inner wall of the mounting cover 4 via sliding holes. Each connecting plate 42 is slidably connected to two guide rods 41 via sliding holes. An airbag 43 is placed between the two connecting plates 42. Springs 44 are symmetrically connected between the inner wall of the mounting cover 4 and the two connecting plates 42. Each spring 44 is wound around... On the corresponding guide rod 41, each connecting plate 42 is provided with multiple guide oblique holes. Each rectangular through hole of the heat dissipation pipe 24 is slidably connected to a baffle 45 through a sliding groove. Each baffle 45 is provided with a pin, and each pin abuts against the corresponding guide oblique hole. The air bag 43 is made of silicone rubber, which has excellent heat resistance, high elasticity and airtightness. It can maintain stable physical properties in the high temperature environment generated by the long-term operation of LED lights. It expands evenly when heated and rebounds quickly after cooling, ensuring the long-term reliable operation of the adaptive adjustment function of the ventilation component.

[0033] As the LED light 16 continues to operate, the internal temperature of the protective housing 13 gradually increases. An airbag 43 is provided inside the mounting cover 4 in the middle of the substrate 15. The airbag 43 is made of silicone rubber. When heated, the internal gas expands, increasing the volume of the airbag 43. The airbag 43 pushes the two connecting plates 42 to the left and right sides. The connecting plates 42 slide outward along the guide rod 41, while compressing the spring 44 wrapped around the guide rod 41. Each connecting plate 42 has multiple guide oblique holes. The pin on the baffle 45 is inserted into the guide oblique hole. When the connecting plate 42 slides outward, the guide oblique hole pushes the pin to move along the oblique hole direction, thereby causing the baffle 45 to slide under the rectangular through hole of the heat dissipation pipe 24, gradually increasing the opening of the rectangular through hole. After the opening increases, more cold air can be blown from the heat dissipation pipe 24 to the LED light 16 through the rectangular through hole, improving heat dissipation efficiency and realizing temperature adaptive regulation.

[0034] When the temperature drops, the airbag 43 cools and contracts, reducing its volume. Under the action of the reset force accumulated by the spring 44, the two connecting plates 42 are pushed back to their initial positions. When the connecting plates 42 slide inward, the guide oblique hole drives the pin to move in the opposite direction, and the baffle 45 resets accordingly. The opening of the rectangular through hole is reduced to its initial state. Throughout the process, the fan 21 continues to operate, the cooler 3 works as needed, and the ventilation components automatically adjust the opening of the rectangular through hole according to the temperature, forming a closed-loop temperature adaptive heat dissipation system. In addition, the placement plate 51 can be removed from the magnetic plate 5 at any time to replace the internal activated carbon material, and then re-adsorbed and fixed to ensure that the air filtration effect remains effective. The reflector 17 always focuses the light towards the light-transmitting plate 14 to ensure uniform illumination.

[0035] Example 2: Based on implementation 1, such as Figure 8 As shown, it also includes a dual-axis motor 6, a worm gear 61, a lead screw 62, and a worm wheel 63. The dual-axis motor 6 is bolted to the bottom of the inner wall of the mounting plate 1. The output shafts at both ends of the dual-axis motor 6 are keyed to the worm gear 61. The lead screw 62 is symmetrically connected to the bottom of the mounting plate 1 by bearings. The top of the two lead screws 62 is keyed to the worm wheel 63. The two worm wheels 63 mesh with the corresponding worm gear 61. The lead screw 62 is threaded to the positioning post 12.

[0036] When this device is needed, the operator first starts the dual-axis motor 6. The output shafts at both ends of the dual-axis motor 6 drive the worm gear 61 to rotate synchronously. The worm gear 61 drives the worm wheel 63 to rotate, and the worm wheel 63 drives the lead screw 62 to rotate. The lead screw 62 drives the positioning pin 12 to slide downward along the guide post 11, thereby driving the protective shell 13 and the internal structure to descend smoothly to the predetermined lighting height. When the lighting ends, the dual-axis motor 6 rotates in the opposite direction, and the lead screw 62 drives the positioning pin 12 to reset upward along the guide post 11, so that the protective shell 13 rises back to the initial position.

[0037] like Figure 7 As shown, it also includes magnetic absorbing pieces 5 and placement plates 51. The protective shell 13 is symmetrically and slidably connected to the placement plates 51. Four magnetic absorbing pieces 5 are glued between the two placement plates 51 and the protective shell 13, and the corresponding two magnetic absorbing pieces 5 attract each other.

[0038] The placement plate 51 is fixed to the protective shell 13 by magnetic adsorption 5. Before air enters the protective cover 2, it first flows through the activated carbon filter material in the placement plate 51. The activated carbon adsorbs dust, moisture and harmful gases in the air, completing the purification. The filtered clean air enters the interior of the protective cover 2, ensuring clean airflow inside. When replacing the activated carbon, manually pull the placement plate 51 outward to overcome the magnetic adsorption force of the magnetic adsorption 5, so that it slides out along the protective shell 13. After removing the old activated carbon and putting in the new filter material, push the placement plate 51 back to its original position. The magnetic adsorption 5 automatically adsorbs and fixes it, completing the replacement. The operation is convenient.

Claims

1. An LED lighting fixture with a heat dissipation and cooling structure, characterized in that, include: Mounting plate (1), the mounting plate (1) is symmetrically provided with guide posts (11) at the bottom, and positioning posts (12) are slidably installed inside the two guide posts (11). The bottom of the two positioning posts (12) is provided with a protective shell (13). The bottom of the protective shell (13) is provided with a light-transmitting plate (14). The protective shell (13) is provided with a substrate (15) inside. The substrate (15) is provided with a regular concave-convex structure. Each protrusion of the substrate (15) is provided with a number of LED lights (16) arranged in a linear array. The inner walls of the protective shell (13) are provided with reflectors (17) on both sides. The two reflectors (17) are inclined towards the LED lights (16). The inner walls of the protective shell (13) are provided with air guiding components for directional airflow and heat dissipation on both sides. The outer wall of the protective shell (13) is provided with a cooling component for air cooling on the right side. The inner wall of the protective shell (13) is provided with a ventilation component for adaptive opening and closing ventilation and matching the heating state of the lamp.

2. The LED lighting fixture with a heat dissipation and cooling structure according to claim 1, characterized in that, The air guiding assembly includes a protective cover (2), a fan (21), heat dissipation fins (22), a heat conduction channel (23), a heat dissipation pipe (24), and an air guide plate (25). The protective cover (2) is provided on both sides of the inner wall of the protective shell (13). The fan (21) is provided inside the two protective covers (2). The heat dissipation fins (22) are provided inside the protective shell (13). The heat conduction channel (23) is provided inside the protective shell (13). The heat conduction channel (23) is connected and communicates with the protective cover (2). The heat dissipation pipe (24) is symmetrically provided at each recess on the top of the substrate (15). The two sides of each heat dissipation pipe (24) are provided with rectangular through holes corresponding to the LED lamp (16). Each heat dissipation pipe (24) is connected and communicates with the heat conduction channel (23). The air guide plate (25) is provided inside the two protective covers (2).

3. The LED lighting fixture with a heat dissipation and cooling structure according to claim 1, characterized in that, The cooling component includes a cooler (3) and a cooling pipe (31). The cooler (3) is provided on the right side of the protective shell (13). The cooler (3) is connected to and communicates with the cooling pipe (31). The cooling pipe (31) passes through the heat conduction channel (23). The cooling pipe (31) abuts against two air guide plates (25).

4. The LED lighting fixture with a heat dissipation and cooling structure according to claim 1, characterized in that, The ventilation assembly includes a mounting cover (4), guide rods (41), connecting plates (42), airbags (43), springs (44), and baffles (45). The mounting cover (4) is provided in the middle of the base plate (15). Guide rods (41) are symmetrically arranged on the inner wall of the mounting cover (4). Connecting plates (42) are symmetrically slidably connected to the inner wall of the mounting cover (4). Each connecting plate (42) is slidably connected to two guide rods (41). An airbag (43) is placed between the two connecting plates (42). Springs (44) are symmetrically connected between the inner wall of the mounting cover (4) and the two connecting plates (42). Each spring (44) is wound around the corresponding guide rod (41). Multiple guide oblique holes are opened on each connecting plate (42). Baffles (45) are slidably connected to the rectangular through hole of each heat dissipation pipe (24). Each baffle (45) is provided with a pin. Each pin slides inside the corresponding guide oblique hole.

5. An LED lighting fixture with a heat dissipation and cooling structure according to claim 1, characterized in that, It also includes a placement plate (51) and magnetic absorbing pieces (5). The protective shell (13) is symmetrically provided with placement plates (51). Four magnetic absorbing pieces (5) are provided between the two placement plates (51) and the protective shell (13), and the corresponding two magnetic absorbing pieces (5) attract each other.

6. An LED lighting fixture with a heat dissipation and cooling structure according to claim 1, characterized in that, It also includes a dual-axis motor (6), a worm (61), a lead screw (62), and a worm wheel (63). The dual-axis motor (6) is provided at the bottom of the mounting plate (1). Both ends of the output shaft of the dual-axis motor (6) are provided with worms (61). The lead screw (62) is symmetrically and rotatably connected to the bottom of the mounting plate (1). The top of the two lead screws (62) is provided with worm wheels (63). The two worm wheels (63) mesh with the corresponding worms (61). The lead screw (62) is threadedly connected to the positioning post (12).

7. An LED lighting fixture with a heat dissipation and cooling structure according to claim 2, characterized in that, The heat dissipation fins (22) are housed within the internal space of the heat conduction channel (23), and the heat dissipation fins (22) are arranged around the outer circumferential position of the substrate (15), and the heat dissipation fins (22) are seamlessly attached to the inner wall of the heat conduction channel (23).

8. An LED lighting fixture with a heat dissipation and cooling structure according to claim 2, characterized in that, The air guide plate (25) adopts an arc-shaped bending structure. Both air guide plates (25) are bent and folded towards the center of the protective shell (13), and the two air guide plates (25) are respectively facing the air outlet of the fan (21) below.

9. An LED lighting fixture with a heat dissipation and cooling structure according to claim 4, characterized in that, The airbag (43) is made of silicone rubber.

10. An LED lighting fixture with a heat dissipation and cooling structure according to claim 2, characterized in that, The heat dissipation fins (22) are made of aluminum alloy.

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