Energy-saving LED lamp with cooling structure

Abstract

The invention discloses an energy-saving LED lamp with a cooling structure, and belongs to the field of LED illumination. Comprising a lampshade, an LED substrate arranged at the bottom of the lampshade and a heat dissipation system. The heat dissipation system comprises a multi-layer heat dissipation assembly and a driving mechanism, the multi-layer heat dissipation assembly comprises a first cooling mechanism and a second cooling mechanism which are coaxially arranged in a nested mode, the first cooling mechanism and the second cooling mechanism are both provided with heat dissipation fins used for heat dissipation, the driving mechanism comprises a brushless motor fixedly connected to the inner top of the lampshade, and the output end of the brushless motor is fixedly connected with a threaded rod; a permanent magnet array is coaxially and fixedly arranged on the outer circular surface of the threaded rod; when the LED lamp is used, through rotation of the threaded rod, angle adjustment and interlayer spacing change of the heat dissipation fins are achieved at the same time, the heat dissipation area and the airflow efficiency can be optimized in real time according to the temperature, and the problem that heat dissipation is insufficient when the LED lamp is used is solved; and the radiating fins are rotated and unfolded to form a directional air flow channel with the arc-shaped notches, and the radiating efficiency is improved by matching with the radiating grooves of the gathering cover.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lighting, and more particularly to an energy-saving LED lamp with a cooling structure. Background Art

[0002] In recent years, LED lighting technology has rapidly become popular due to its advantages such as high efficiency, energy saving, long life and environmental protection. However, high-power LEDs generate a lot of heat during operation. If this heat cannot be effectively dissipated, the temperature of the LED chip will be too high, thus affecting its light efficiency, life and color stability. Therefore, heat dissipation has become one of the key factors restricting the performance improvement of LED lamps.

[0003] In outdoor applications, embedded downlights usually adopt a closed lampshade design to meet the requirements of IP protection level. Although this design can effectively prevent dust and moisture from entering the interior of the lamp, it also brings new challenges. Specifically: traditional heat dissipation mainly relies on the conduction of the metal shell of the lamp body, and the heat dissipation area is increased through a radial layout. However, the heat dissipation area of ​​this single-layer structure is limited, and it is difficult to meet the heat dissipation requirements of high-power LEDs. As a result, high-power LEDs are prone to light decay due to excessively high junction temperatures. And for LED lights installed outdoors, the existing heat dissipation structure is difficult to take into account the needs of dust and water resistance and air circulation. For example, although the open fin design is conducive to air circulation, it is easily invaded by rain or blocked by dust, resulting in a decrease in heat dissipation effect. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide an energy-saving LED lamp with a cooling structure, aiming to solve the above technical problems.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] An energy-saving LED lamp with a cooling structure comprises a lampshade, an LED substrate arranged at the bottom of the lampshade, and a heat dissipation system; the heat dissipation system comprises: A multi-layer heat dissipation assembly comprises a first cooling mechanism and a second cooling mechanism coaxially nested, wherein the first cooling mechanism and the second cooling mechanism are both provided with heat dissipation fins for heat dissipation; The driving mechanism comprises a brushless motor fixedly connected to the top of the lampshade, the output end of the brushless motor is fixedly connected to a threaded rod, the outer circumferential surface of the threaded rod is coaxially fixedly provided with a permanent magnet array; and a modulation ring is coaxially sleeved on the radial outer side of the permanent magnet array, the modulation ring and the permanent magnet array form a non-contact magnetic coupling structure, and a predetermined radial gap is maintained between the two to form a magnetic circuit modulation area; A dynamic heat dissipation adjustment module drives the heat dissipation fins of the first cooling mechanism and the second cooling mechanism to adjust the angle and change the interlayer spacing through the rotation of the threaded rod; The outer wall of the lampshade is provided with an arc-shaped notch covered with a waterproof film. When the heat dissipation fins are unfolded, the positions of the arc-shaped notches correspond to those of the notches to form an air flow channel, and the surfaces of the heat dissipation fins are provided with a hydrophobic coating.

[0007] As a further solution of the present invention: the first cooling mechanism includes a first support plate fixed to the inner bottom of the lampshade; a support plate arranged at the center of the first support plate, and a ring array with limiting rods is provided in its circumferential direction; a first ring is sleeved on the threaded rod, and the first ring is fixedly connected to the support plate through the limiting rod; the outer circular surface of the first ring is fixedly connected to the first limiting plate, and the first limiting plate is hinged to a first gathering frame at one end away from the first ring, and the first gathering frame has heat dissipation fins embedded in it.

[0008] As a further solution of the present invention: the outer cylindrical surface of the threaded rod is provided with a second support plate fixedly connected to the first sleeve; the second cooling mechanism includes a second sleeve connected to the outer cylindrical surface of the threaded rod, the outer cylindrical surface of the second sleeve is fixedly connected to a circumferentially arranged fixing plate, a limiting hole is provided inside the fixing plate close to one side of the second sleeve, and a second gathering frame is hinged on one side of the fixing plate.

[0009] As a further solution of the present invention: a threaded sleeve threadedly connected to the threaded rod is provided directly below the second ring, a bracket is fixedly connected to the middle of the inner side of the second gathering frame, a support arm is hinged between the bracket and the threaded sleeve, and the second gathering frame is hinged to the threaded sleeve through the support arm; a fixing rod is fixedly connected to the upper surface of the second support plate, the fixing rod passes through the bracket and is fixedly connected to the fixing plate with a gathering cover, and a heat dissipation groove is provided on the outer circumferential surface of the gathering cover.

[0010] As a further solution of the present invention: the driving mechanism also includes a support rod fixedly connected to the outer circular surface of the modulation ring, and the modulation ring is fixedly connected to the gear ring through the support rod; the first gathering frame and the second gathering frame are both provided with slots for the movement of the heat dissipation fins inside, the second gathering frame and the first gathering frame are arranged in an staggered and stacked manner, and the distance between the two is adjusted by the displacement of the threaded sleeve on the threaded rod; the inner top walls of the first gathering frame and the second gathering frame are both provided with a transmission mechanism for driving the heat dissipation fins to rotate.

[0011] As a further solution of the present invention: the transmission mechanism includes a limit seat arranged at both ends of the inner side of the second gathering frame, a vertical plate is fixedly connected between the bottom of the limit seat and the second support plate, an auxiliary seat is fixedly connected to the top of the limit seat, a support rod is rotatably connected to the inside of the auxiliary seat, a main bevel gear is fixedly connected to the bottom of the outer cylindrical surface of the support rod, a first gear is fixedly connected to the middle of the outer cylindrical surface of the support rod, and the first gear is meshed with the gear ring to drive the support rod to rotate.

[0012] As a further solution of the present invention: the internal rotation of the limit seat is connected with linearly arranged rotating rods, the rotating rods are all in a Z-shaped bend, and the vertical turning point of the rotating rod is provided with a driven bevel gear meshing with the main bevel gear.

[0013] As a further solution of the present invention: one end of the rotating rods linearly arranged inside the limit seat is fixedly connected to the second gear, the outer surface of the second gear is commonly sleeved with a gear belt, the side of the rotating rods close to the second gathering frame is fixedly connected to the heat dissipation fins, and the heat dissipation fins are movably clamped inside the second gathering frame.

[0014] As a further solution of the present invention: the first gathering frame and the second gathering frame are coaxially arranged in an alternating and stacked manner, and a cleaning mechanism for cleaning dust on the surfaces of the first gathering frame and the second gathering frame is also provided inside the lampshade, and the cleaning mechanism includes a fan blade fixed to a threaded rod for generating a directional airflow; a fixed sleeve coaxially connected is provided at the bottom of the fan blade, a connecting plate is fixedly connected to the outer cylindrical surface of the fixed sleeve, a brush is fixedly connected to one end of the connecting plate, and the bristle end of the brush contacts the surface of the heat dissipating fin; when the fan blade rotates, the brush is synchronously driven to clean the surface of the heat dissipating fin.

[0015] As a further solution of the present invention: the flexible end of the brush is provided with a conductive fiber layer, and the surface of the heat dissipation fin is coated with an antistatic coating.

[0016] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects: (1) This solution is provided with a first cooling mechanism, a second cooling mechanism, a driving mechanism, a transmission mechanism, and heat sink fins. When in use, the angle of the heat sink fins can be adjusted and the interlayer spacing can be changed by rotating the threaded rod. The heat sink area and airflow efficiency can be optimized in real time according to the temperature, thereby avoiding the problem of insufficient heat dissipation of the LED lamp when in use. At the same time, the non-contact transmission of the permanent magnet array and the modulation ring can be used to avoid mechanical wear, extend the service life, and reduce noise, making it suitable for high humidity environments. The rotation and expansion of the heat sink fins and the arc-shaped notches form a directional airflow channel, which cooperates with the heat sink of the gathering cover to achieve the "intake-acceleration-exhaust" cycle of air, thereby improving the heat dissipation efficiency.

[0017] (2) By providing a driving mechanism and a transmission mechanism, when in use, the vertical meshing design of the main bevel gear and the driven bevel gear can realize an efficient conversion of the power direction from vertical to horizontal, so as to adapt to the requirements of complex space layout; at the same time, the gear belt is used to link multiple second gears to ensure that all the rotating rods rotate synchronously, thereby avoiding mechanical wear or vibration caused by speed differences; and when the heat dissipation fins swing with the rotating rods, their reciprocating motion accelerates the air flow inside the second gathering frame, thereby improving the heat dissipation efficiency and preventing the performance of the equipment from being degraded due to high temperature.

[0018] (3) By providing a driving mechanism and a cleaning mechanism, when the threaded rod rotates, the fan blades fixed thereon rotate synchronously to generate a directional airflow, and the airflow direction is toward the staggered stacking area of ​​the first gathering frame and the second gathering frame, which is used to blow away the dust accumulated on the surface. At the same time, the rotation of the fan blades is transmitted to the connecting plate through the coaxially connected fixing sleeve, driving the brush to rotate around the axis of the threaded rod. When the brush at the end of the connecting plate rotates with the fixing sleeve, the end of its flexible bristles keeps in contact with the surface of the heat dissipating fins; the rotating motion of the brush is used to make its bristles remove dust on the surface of the heat dissipating fins by friction and sweeping, and at the same time, the directional airflow blows the peeled dust away from the gathering frame area to avoid secondary attachment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the internal structure of the lampshade of the present invention; Figure 4 for Figure 3 Schematic diagram of split connection; Figure 5 It is a schematic diagram of the connection between the driving mechanism and the second cooling mechanism of the present invention; Figure 6 It is a schematic diagram of the connection between the driving mechanism and the transmission mechanism of the present invention; Figure 7 for Figure 6 A partial enlarged schematic diagram in the middle; Figure 8 It is a connection schematic diagram of the cleaning mechanism of the present invention.

[0021] Reference numerals: 1. Lampshade; 2. Waterproof membrane; 3. LED substrate; 4. first cooling mechanism; 41. first supporting plate; 42. supporting plate; 43. limiting rod; 44. first sleeve ring; 45. first limiting plate; 46. first gathering frame; 5. The second support plate; 6. driving mechanism; 61. brushless motor; 62. threaded rod; 63. permanent magnet array; 64. modulation ring; 65. gear ring; 7. Second cooling mechanism; 71. Second sleeve ring; 72. Fixing plate; 73. Positioning hole; 74. Second gathering frame; 75. Threaded sleeve; 76. Support arm; 77. Bracket; 8. Transmission mechanism; 81. Vertical plate; 82. Limiting seat; 83. Auxiliary seat; 84. First gear; 85. Main bevel gear; 86. Rotating rod; 87. Driven bevel gear; 88. Second gear; 89. Gear belt; 9. Heat dissipation fins; 10. Gathering cover; 101. Heat dissipation slot; 11. Cleaning mechanism; 111. Fan blades; 112. Fixing sleeve; 113. Connecting plate; 114. Brush.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0023] The following is a detailed description of an energy-saving LED lamp with a cooling structure provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0024] like Figures 1 to 8 As shown, an embodiment of the present invention provides an energy-saving LED lamp with a cooling structure, including a lampshade 1, an LED substrate 3 arranged at the bottom of the lampshade 1, and a heat dissipation system; the heat dissipation system includes: A multi-layer heat dissipation component comprises a first cooling mechanism 4 and a second cooling mechanism 7 which are coaxially nested, and both the first cooling mechanism 4 and the second cooling mechanism 7 are provided with heat dissipation fins 9 for heat dissipation; The driving mechanism 6 includes a brushless motor 61 fixedly connected to the top of the lampshade 1, a threaded rod 62 fixedly connected to the output end of the brushless motor 61, a permanent magnet array 63 coaxially fixedly arranged on the outer circumferential surface of the threaded rod 62; and a modulation ring 64 is coaxially sleeved on the radial outer side of the permanent magnet array 63, the modulation ring 64 and the permanent magnet array 63 form a non-contact magnetic coupling structure, and a predetermined radial gap is maintained between the two to form a magnetic circuit modulation area; Dynamic heat dissipation adjustment module, which drives the heat dissipation fins 9 of the first cooling mechanism 4 and the second cooling mechanism 7 to adjust the angle and change the interlayer spacing through the rotation of the threaded rod 62; The outer wall of the lampshade 1 is provided with an arc-shaped notch covering the waterproof membrane 2 , and the heat dissipation fins 9 correspond to the position of the arc-shaped notch when unfolded to form an air flow channel, and the surface of the heat dissipation fins 9 is provided with a hydrophobic coating.

[0025] like Figure 2 , Figure 3 , Figure 4 As shown, the first cooling mechanism 4 includes a first support plate 41 fixed to the inner bottom of the lampshade 1; a support plate 42 arranged at the center of the first support plate 41, and a ring array with limiting rods 43 is provided in its circumference; a first ring 44 is sleeved on the threaded rod 62, and the first ring 44 is fixedly connected to the support plate 42 through the limiting rod 43; the outer circular surface of the first ring 44 is fixedly connected to the first limiting plate 45, and the first limiting plate 45 is hingedly connected to the end away from the first ring 44 with a first gathering frame 46, and the first gathering frame 46 has heat dissipation fins 9 embedded therein.

[0026] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the outer circumferential surface of the threaded rod 62 is provided with a second support plate 5 fixedly connected to the first sleeve ring 44; the second cooling mechanism 7 includes a second sleeve ring 71 sleeved on the outer circumferential surface of the threaded rod 62, and the outer circumferential surface of the second sleeve ring 71 is fixedly connected with a circumferentially arranged fixing plate 72, and a limiting hole 73 is provided inside the fixing plate 72 close to one side of the second sleeve ring 71, and a second gathering frame 74 is hinged on one side of the fixing plate 72.

[0027] like Figure 5 , Figure 6 , Figure 7 As shown, a threaded sleeve 75 threadedly connected to the threaded rod 62 is provided directly below the second ring 71, a bracket 77 is fixedly connected to the middle of the inner side of the second gathering frame 74, a support arm 76 is hinged between the bracket 77 and the threaded sleeve 75, and the second gathering frame 74 is hinged to the threaded sleeve 75 through the support arm 76; a fixing rod is fixedly connected to the upper surface of the second support plate 5, the fixing rod passes through the bracket 77 and is fixedly connected to the fixing plate 72 with a gathering cover 10, and a heat dissipation groove 101 is provided on the outer circumferential surface of the gathering cover 10.

[0028] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the driving mechanism 6 also includes a support rod fixedly connected to the outer circumferential surface of the modulation ring 64, and the modulation ring 64 is fixedly connected to the gear ring 65 through the support rod; the first gathering frame 46 and the second gathering frame 74 are both provided with slots for the movement of the heat dissipation fins 9, the second gathering frame 74 and the first gathering frame 46 are arranged in an alternating and stacked manner, and the distance between the two is adjusted by the displacement of the threaded sleeve 75 on the threaded rod 62; the inner top walls of the first gathering frame 46 and the second gathering frame 74 are both provided with a transmission mechanism 8 for driving the heat dissipation fins 9 to rotate.

[0029] In order to solve the problem of insufficient heat dissipation due to the limited traditional heat dissipation area when the existing LED lamp is in use, the above technical solution is adopted to solve the problem. The above technical solution is mainly composed of a first cooling mechanism 4, a second cooling mechanism 7, a driving mechanism 6, a transmission mechanism 8, and a heat dissipation fin 9. When the temperature of the LED lamp rises, the control system triggers the brushless motor 61 to start and drives the threaded rod 62 at its output end to rotate clockwise or counterclockwise. When the threaded rod 62 rotates, the permanent magnet array 63 on its outer cylindrical surface rotates synchronously, and through the non-contact magnetic coupling effect, the modulation ring 64 on the radial outer side is driven to follow the rotation (the magnetic circuit modulation area transmits torque through the magnetic field). The modulation ring 64 drives the gear ring 65 to rotate through the support rod on the outer cylindrical surface. The gear ring 65 meshes with the gear of the transmission mechanism 8, and transmits the rotational power to the rotating shaft of the heat dissipation fin 9, so that the heat dissipation fin 9 rotates in the slot to expand or retract. Since the first gathering frame 46 and the second gathering frame 74 have the same structure and function, when the threaded rod 62 rotates, under the limiting action of the limiting rod 43 and the fixed rod, the threaded sleeve 75 generates axial displacement (moves upward or downward) on the threaded rod 62, and the threaded sleeve 75 pulls the bracket 77 of the second gathering frame 74 through the hinged support arm 76, so that the second gathering frame 74 swings around the hinge point of the fixed plate 72, changing the interlayer spacing between it and the first gathering frame 46, and the heat dissipation fins 9 of the second gathering frame 74 are also driven to rotate by the transmission mechanism 8 to form staggered and stacked air flow channels. At the same time, the transmission mechanism 8 drives the heat dissipation fins 9 to rotate around their own axes (for example, adjusting the tilt angle) through the rotation of the gear ring 65, thereby increasing the contact area with the air; the rotation of the heat dissipation fins 9 generates centrifugal force, which accelerates the discharge of air from the heat dissipation slots 101, thereby forming forced convection heat dissipation. Since the surface of the heat dissipation fins 9 is coated with a hydrophobic coating, it can effectively prevent water vapor from adhering, and the waterproof membrane 2 ensures that the arc-shaped slots can still remain ventilated on rainy days.

[0030] During the above operation, the angle adjustment (rotational expansion) and interlayer spacing change (interlaced stacking) of the heat dissipation fins 9 are achieved simultaneously by rotating the threaded rod 62, and the heat dissipation area and airflow efficiency can be optimized in real time according to the temperature, avoiding the problem of insufficient heat dissipation of the LED lamp when in use; the non-contact transmission of the permanent magnet array 63 and the modulation ring 64 avoids mechanical wear, prolongs the service life, and reduces noise, which is suitable for high humidity environments (such as outdoor lighting). At the same time, the rotational expansion of the heat dissipation fins 9 and the arc-shaped notch form a directional airflow channel, and cooperate with the heat dissipation slot 101 of the gathering cover 10 to achieve the "intake-acceleration-exhaust" cycle of air, thereby improving the heat dissipation efficiency; and the heat dissipation fins 9 are coated with a hydrophobic coating to reduce the adhesion of dust and water stains, and the waterproof film 2 protects the internal circuit to ensure the reliability of the heat dissipation system in harsh environments. In addition, by actively adjusting the heat dissipation intensity, the brushless motor 61 is started only when needed to reduce the overall power consumption; the multi-layer nested structure reduces the use of materials and achieves a lightweight design.

[0031] like Figure 6 , Figure 7 As shown, the transmission mechanism 8 includes a limit seat 82 arranged at both ends of the inner side of the second gathering frame 74, a vertical plate 81 is fixedly connected between the bottom of the limit seat 82 and the second support plate 5, an auxiliary seat 83 is fixedly connected to the top of the limit seat 82, the internal rotation of the auxiliary seat 83 is connected to a support rod, a main bevel gear 85 is fixedly connected to the bottom of the outer cylindrical surface of the support rod, a first gear 84 is fixedly connected to the middle of the outer cylindrical surface of the support rod, and the first gear 84 is meshed with the gear ring 65 to drive the support rod to rotate.

[0032] like Figure 6 , Figure 7 As shown, the limiting seat 82 is internally rotatably connected with linearly arranged rotating rods 86 , which are all in a Z-shaped bend, and a driven bevel gear 87 meshing with the main bevel gear 85 is provided at the vertical turning point of the rotating rod 86 .

[0033] like Figure 6 , Figure 7 As shown, one end of the linearly arranged rotating rods 86 inside the limit seat 82 is fixedly connected to the second gear 88, and the outer surface of the second gear 88 is commonly sleeved with a gear belt 89. The side of the rotating rods 86 close to the second gathering frame 74 is fixedly connected to the heat dissipation fins 9, and the heat dissipation fins 9 are movably clamped inside the second gathering frame 74.

[0034] When the threaded rod 62 rotates, the permanent magnet array 63 on its outer circumference rotates synchronously, and through the non-contact magnetic coupling effect, the modulation ring 64 on the radial outer side is driven to follow the rotation (the magnetic circuit modulation area transmits torque through the magnetic field), and the modulation ring 64 drives the gear ring 65 to rotate through the support rod on the outer circumference, and the gear ring 65 drives the support rod to rotate around its axis through the meshing action with the first gear 84. The rotation of the support rod is synchronously transmitted to the main bevel gear 85 fixed at the bottom of its outer circumference, so that it rotates around the vertical direction (perpendicular to the axis of the support rod). Since the main bevel gear 85 is meshed with the driven bevel gear 87 at the vertical turning point of each rotating rod 86, the power direction is changed from vertical to horizontal. The rotating rod 86 rotates around its own axis due to the drive of the driven bevel gear 87. In the process of rotating the rotating rod 86, all the second gears 88 are connected in series through the gear belt 89 to ensure that the speed and direction of multiple rotating rods 86 are completely synchronized. And because the rotating rod 86 is close to the side of the second gathering frame 74, the heat dissipation fin 9 is fixed. When the rotating rod 86 rotates, the heat dissipating fins 9 swing accordingly, and the movable end thereof forms a periodic reciprocating motion inside the second gathering frame 74. In addition, during the entire operation, the vertical plate 81 rigidly connects the limit seat 82 with the second support plate 5 to prevent deviation caused by vibration or load during the transmission process, and ensure the meshing accuracy of the main bevel gear 85 and the driven bevel gear 87.

[0035] During the above operation, the vertical meshing design of the main bevel gear 85 and the driven bevel gear 87 realizes efficient conversion of the power direction from vertical to horizontal, which meets the requirements of complex space layout; the bending structure of the Z-shaped rotating rod 86 is used to complete power transmission in a limited space to avoid interference with other components. At the same time, the gear belt 89 is used to link multiple second gears 88 to ensure that all rotating rods 86 rotate synchronously to avoid mechanical wear or vibration caused by speed differences. When the heat dissipation fins 9 swing with the rotating rod 86, their reciprocating motion accelerates the air flow inside the second gathering frame 74, improves the heat dissipation efficiency, and prevents the performance of the equipment from being degraded due to high temperature. The rigid connection design of the vertical plate 81 and the limit seat 82 enhances the overall stability of the transmission mechanism 8 and reduces vibration and noise during the gear meshing process. The rotation support of the support rod by the auxiliary seat 83 further improves the transmission accuracy and life of the main bevel gear 85. The elastic material of the gear belt 89 can buffer the transmission impact and extend the service life of the gear and the rotating rod 86.

[0036] like Figure 4 , Figure 8As shown, the first gathering frame 46 and the second gathering frame 74 are coaxially arranged in an alternating manner, and the interior of the lampshade 1 is also provided with a cleaning mechanism 11 for cleaning dust on the surface of the first gathering frame 46 and the second gathering frame 74. The cleaning mechanism 11 includes a fan blade 111 fixed to the threaded rod 62, which is used to generate a directional airflow; a fixed sleeve 112 coaxially connected is provided at the bottom of the fan blade 111, and a connecting plate 113 is fixedly connected to the outer cylindrical surface of the fixing sleeve 112, and a brush 114 is fixedly connected to one end of the connecting plate 113, and the bristle end of the brush 114 contacts the surface of the heat dissipation fin 9; when the fan blade 111 rotates, the brush 114 is synchronously driven to clean the surface of the heat dissipation fin 9.

[0037] like Figure 4 , Figure 8 As shown, the flexible end of the brush 114 is provided with a conductive fiber layer, and the surface of the heat dissipation fin 9 is coated with an antistatic coating.

[0038] When the threaded rod 62 rotates, the fan blades 111 fixed thereon rotate synchronously, generating a directional airflow, and the airflow direction is toward the staggered stacking area of ​​the first gathering frame 46 and the second gathering frame 74, which is used to blow away the dust accumulated on the surface. At the same time, the rotation of the fan blades 111 is transmitted to the connecting plate 113 through the coaxially connected fixing sleeve 112, driving the brush 114 to rotate around the axis of the threaded rod 62. When the brush 114 at the end of the connecting plate 113 rotates with the fixing sleeve 112, the end of its flexible bristles keeps in contact with the surface of the heat dissipating fin 9; the rotation of the brush 114 is used to make its bristles remove dust on the surface of the heat dissipating fin 9 in a friction and sweeping manner, and at the same time, the directional airflow blows the peeled dust away from the gathering frame area to avoid secondary attachment. Furthermore, when the conductive fiber layer at the flexible end of the brush 114 contacts the antistatic coating on the surface of the heat dissipating fin 9, the static charge generated by the friction between the bristles and the fins is neutralized through the electrostatic dissipation function of the conductive fiber, and the antistatic coating further inhibits the dust from being adsorbed on the surface of the heat dissipating fin 9 due to static electricity, ensuring that the cleaning process is efficient and durable. Furthermore, due to the coaxial staggered stacking design of the first gathering frame 46 and the second gathering frame 74, the brush 114 can cover the adjacent surfaces of the two gathering frames when rotating, and penetrate the stacking gap through the directional airflow to achieve dust cleaning without dead angles.

[0039] During the above operation, the fan blades 111 generate directional airflow to assist heat dissipation while driving the brush 114 to clean dust through mechanical linkage, thereby achieving the dual functions of heat dissipation and cleaning and reducing additional energy consumption. At the same time, the directional airflow directly acts on the stacking area of ​​the gathering frame to accelerate heat dissipation and remove dust simultaneously, thereby avoiding the decrease in heat dissipation efficiency caused by dust accumulation. The combined design of the conductive fiber layer and the antistatic coating effectively eliminates static electricity generated by friction during the cleaning process, prevents dust from reattaching due to electrostatic adsorption, and significantly improves the thoroughness of cleaning.

[0040] When the present invention is in use, when the control system (such as a temperature sensor) detects that the temperature inside the LED lamp has risen, it will trigger the brushless motor 61 to start, driving the threaded rod 62 at its output end to rotate clockwise or counterclockwise. When the threaded rod 62 rotates, the permanent magnet array 63 on the outer circumference of the threaded rod 62 rotates synchronously, and through the non-contact magnetic coupling effect, the modulation ring 64 on the radial outer side is driven to follow the rotation (the magnetic circuit modulation area transmits torque through the magnetic field), so that the modulation ring 64 drives the gear ring 65 to rotate through the support rod on the outer circumference, and the gear ring 65 is meshed with the gear of the transmission mechanism 8, and the rotational power is transmitted to the rotating shaft of the heat sink fin 9, so that the heat sink fin 9 rotates in the slot to expand or retract. In the process of the threaded rod 62 rotating, under the limiting action of the limiting rod 43 and the fixed rod, the threaded sleeve 75 generates axial displacement (moves upward or downward) on the threaded rod 62, and the threaded sleeve 75 pulls the bracket 77 of the second gathering frame 74 through the hinged support arm 76, so that the second gathering frame 74 swings around the hinge point of the fixed plate 72, changing the interlayer spacing between it and the first gathering frame 46, and the heat dissipation fins 9 of the second gathering frame 74 are also driven to rotate by the transmission mechanism 8 to form a staggered and stacked air flow channel. At the same time, the transmission mechanism 8 drives the heat dissipation fins 9 to rotate around their own axis (for example, adjusting the tilt angle) through the rotation of the gear ring 65, increasing the contact area with the air; the rotation of the heat dissipation fins 9 generates centrifugal force, accelerating the discharge of air from the heat dissipation slot 101, forming forced convection heat dissipation, and because the surface of the heat dissipation fins 9 is coated with a hydrophobic coating, it can effectively prevent water vapor from adhering, and the waterproof membrane 2 ensures that the arc-shaped slot can still be ventilated on rainy days. The rotation of the gear ring 65 causes the meshing first gear 84 to rotate, thereby driving the fixedly connected support rod to rotate around its axis, and the power direction is changed from vertical to horizontal through the main bevel gear 85. Since the main bevel gear 85 meshes with the driven bevel gear 87 at the vertical turning point of each rotating rod 86, the power is transmitted to the rotating rod 86, causing it to rotate around its own axis. The heat sink 9 is fixed on the side of the rotating rod 86 close to the second gathering frame 74. When the rotating rod 86 rotates, the heat sink 9 swings accordingly, forming a periodic reciprocating motion. When the heat sink 9 is unfolded, its position is aligned with the arc-shaped notch on the outer wall of the lampshade 1, forming a channel for external air to enter. The rotation of the heat sink 9 generates centrifugal force, accelerates the air to be discharged from the heat sink 101, and forms forced convection heat dissipation. In addition, since the surface of the heat sink fin 9 is coated with a hydrophobic coating, it can effectively prevent water vapor from adhering; the waterproof membrane 2 ensures that the arc-shaped notch can still be ventilated on rainy days; the fan blades 111 fixed on the threaded rod 62 rotate synchronously, generating a directional airflow to blow away the dust accumulated on the surface. The rotation of the fan blade 111 is transmitted to the connecting plate 113 through the coaxially connected fixing sleeve 112, driving the brush 114 to revolve around the axis of the threaded rod 62. The end of the flexible bristle keeps in contact with the surface of the heat sink fin 9, removing dust on the surface of the heat sink fin 9 by friction and sweeping.When the conductive fiber layer at the flexible end of the brush 114 contacts the antistatic coating on the surface of the heat dissipation fin 9, the static charges generated by the friction between the bristles and the fins are neutralized through the static electricity dissipation function of the conductive fibers, further suppressing dust adsorption.

[0041] The present invention covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving LED lamp with a cooling structure, comprising a lampshade (1), an LED substrate (3) arranged at the bottom of the lampshade (1), and a heat dissipation system; characterized in that: The heat dissipation system comprises: A multi-layer heat dissipation component comprises a first cooling mechanism (4) and a second cooling mechanism (7) which are coaxially nested, wherein the first cooling mechanism (4) and the second cooling mechanism (7) are both provided with heat dissipation fins (9) for dissipating heat; The driving mechanism (6) comprises a brushless motor (61) fixedly connected to the top of the lampshade (1); the output end of the brushless motor (61) is fixedly connected to a threaded rod (62); a permanent magnet array (63) is coaxially fixedly arranged on the outer circumferential surface of the threaded rod (62); and a modulation ring (64) is coaxially sleeved on the radial outer side of the permanent magnet array (63); the modulation ring (64) and the permanent magnet array (63) form a non-contact magnetic coupling structure, and a predetermined radial gap is maintained between the two to form a magnetic circuit modulation area; A dynamic heat dissipation adjustment module, which drives the heat dissipation fins (9) of the first cooling mechanism (4) and the second cooling mechanism (7) to adjust their angles and change the interlayer spacing by rotating the threaded rod (62); The outer wall of the lampshade (1) is provided with an arc-shaped notch covering the waterproof membrane (2); the heat dissipation fins (9) correspond to the positions of the arc-shaped notches when unfolded to form an air flow channel; and the surface of the heat dissipation fins (9) is provided with a hydrophobic coating.

2. An energy-saving LED lamp with a cooling structure according to claim 1, characterized in that: The first cooling mechanism (4) comprises a first support plate (41) fixed to the inner bottom of the lampshade (1); a support plate (42) arranged at the center of the first support plate (41), and provided with an annular array with limiting rods (43) in its circumferential direction; a first sleeve ring (44) sleeved on the threaded rod (62), the first sleeve ring (44) being fixedly connected to the support plate (42) via the limiting rod (43); a first limiting plate (45) being fixedly connected to the outer circumferential surface of the first sleeve ring (44), a first gathering frame (46) being hingedly connected to one end of the first limiting plate (45) away from the first sleeve ring (44), and a heat dissipation fin (9) being embedded in the first gathering frame (46).

3. An energy-saving LED lamp with a cooling structure according to claim 2, characterized in that: The outer circumferential surface of the threaded rod (62) is provided with a second support plate (5) fixedly connected to the first sleeve ring (44); the second cooling mechanism (7) comprises a second sleeve ring (71) sleeved on the outer circumferential surface of the threaded rod (62); the outer circumferential surface of the second sleeve ring (71) is fixedly connected to a circumferentially arranged fixing plate (72); a limiting hole (73) is provided inside the fixing plate (72) on one side close to the second sleeve ring (71); and a second gathering frame (74) is hingedly connected to one side of the fixing plate (72).

4. An energy-saving LED lamp with a cooling structure according to claim 3, characterized in that: A threaded sleeve (75) threadedly connected to the threaded rod (62) is arranged directly below the second collar (71); a bracket (77) is fixedly connected to the middle of the inner side of the second gathering frame (74); a support arm (76) is hingedly connected between the bracket (77) and the threaded sleeve (75); and the second gathering frame (74) is hingedly connected to the threaded sleeve (75) via the support arm (76); a fixing rod is fixedly connected to the upper surface of the second support plate (5); the fixing rod passes through the bracket (77) and the fixing plate (72) and is fixedly connected to a gathering cover (10); a heat dissipation groove (101) is provided on the outer circumferential surface of the gathering cover (10).

5. An energy-saving LED lamp with a cooling structure according to claim 4, characterized in that: The driving mechanism (6) further comprises a support rod fixedly connected to the outer circumferential surface of the modulation ring (64), and the modulation ring (64) is fixedly connected to the gear ring (65) via the support rod; the first gathering frame (46) and the second gathering frame (74) are both provided with slots for movement of the heat dissipation fins (9); the second gathering frame (74) and the first gathering frame (46) are arranged in an alternating and stacked manner, and the distance between the two is adjusted by displacement of the threaded sleeve (75) on the threaded rod (62); the inner top walls of the first gathering frame (46) and the second gathering frame (74) are both provided with transmission mechanisms (8) for driving the heat dissipation fins (9) to rotate.

6. An energy-saving LED lamp with a cooling structure according to claim 5, characterized in that: The transmission mechanism (8) comprises a limit seat (82) arranged at both ends of the inner side of the second gathering frame (74); a vertical plate (81) is fixedly connected between the bottom of the limit seat (82) and the second support plate (5); an auxiliary seat (83) is fixedly connected to the top of the limit seat (82); a support rod is rotatably connected inside the auxiliary seat (83); a main bevel gear (85) is fixedly connected to the bottom of the outer cylindrical surface of the support rod; a first gear (84) is fixedly connected to the middle of the outer cylindrical surface of the support rod; the first gear (84) is meshedly connected to the gear ring (65) to drive the support rod to rotate.

7. An energy-saving LED lamp with a cooling structure according to claim 6, characterized in that: The limiting seat (82) is internally rotatably connected to linearly arranged rotating rods (86), the rotating rods (86) are all in a Z-shaped bend, and a driven bevel gear (87) meshingly connected to the main bevel gear (85) is provided at the vertical turning point of the rotating rod (86).

8. An energy-saving LED lamp with a cooling structure according to claim 7, characterized in that: One end of each of the linearly arranged rotating rods (86) inside the limit seat (82) is fixedly connected to a second gear (88), and the outer surface of the second gear (88) is sleeved with a gear belt (89); one side of each of the rotating rods (86) close to the second gathering frame (74) is fixedly connected to a heat dissipation fin (9), and the heat dissipation fin (9) is movably clamped inside the second gathering frame (74).

9. An energy-saving LED lamp with a cooling structure according to claim 8, characterized in that: The first gathering frame (46) and the second gathering frame (74) are coaxially arranged in an alternating manner. The lampshade (1) is further provided with a cleaning mechanism (11) for cleaning dust on the surfaces of the first gathering frame (46) and the second gathering frame (74). The cleaning mechanism (11) comprises a fan blade (111) fixed to the threaded rod (62) and used to generate a directional airflow. A fixed sleeve (112) coaxially connected is provided at the bottom of the fan blade (111). A connecting plate (113) is fixedly connected to the outer circumferential surface of the fixed sleeve (112). A brush (114) is fixedly connected to one end of the connecting plate (113), and the bristle end of the brush (114) contacts the surface of the heat dissipation fin (9). When the fan blade (111) rotates, the brush (114) is synchronously driven to clean the surface of the heat dissipation fin (9).

10. An energy-saving LED lamp with a cooling structure according to claim 9, characterized in that: The flexible end of the brush (114) is provided with a conductive fiber layer, and the surface of the heat dissipation fin (9) is coated with an antistatic coating.

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