An energy-saving LED lamp with a cooling structure

Abstract

The present invention discloses an energy-saving LED lamp with a cooling structure, belonging to the field of LED lighting; it includes a lamp cover, an LED substrate arranged at the bottom of the lamp cover, and a heat dissipation system; the heat dissipation system includes: a multi-layer heat dissipation component, which includes a first cooling mechanism and a second cooling mechanism nested coaxially, and both the first cooling mechanism and the second cooling mechanism are provided with heat dissipation fins for heat dissipation. The driving mechanism includes a brushless motor fixedly connected to the inner top of the lamp cover, the output end of the brushless motor is fixedly connected with a threaded rod, and a permanent magnet array is coaxially and fixedly arranged on the outer cylindrical surface of the threaded rod; when this application is in use, through the rotation of the threaded rod, the angle adjustment of the heat dissipation fins and the change of the interlayer spacing are realized simultaneously, and the heat dissipation area and the air flow efficiency can be optimized in real time according to the temperature, avoiding the problem of insufficient heat dissipation when the LED lamp is in use; and by using the rotation and unfolding of the heat dissipation fins to form a directional air flow channel with the arc-shaped notch, and cooperating with the heat dissipation slots of the converging cover, the heat dissipation efficiency is improved.

Description

Technical Field

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

[0002] In recent years, LED lighting technology has been rapidly popularized due to its advantages such as high energy efficiency, long lifespan, and environmental friendliness. However, high-power LEDs generate a large amount of heat during operation. If this heat cannot be effectively dissipated, it will cause the temperature of the LED chips to be too high, thereby affecting their luminous efficiency, lifespan, and color stability. Therefore, the heat dissipation problem has become one of the key factors restricting the performance improvement of LED lamps.

[0003] In outdoor applications, in order to meet the requirements of the IP protection level, recessed downlights usually adopt a closed lamp cover design. 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 housing 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 excessive junction temperature. Moreover, for LED lamps installed outdoors, the existing heat dissipation structures are difficult to balance the requirements of dust and water protection and air circulation. For example, the open fin design helps with air circulation, but it is easily invaded by rain or blocked by dust, resulting in a decline in heat dissipation effect. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose 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 includes a lamp cover, an LED substrate disposed at the bottom of the lamp cover, and a heat dissipation system; the heat dissipation system includes:

[0007] A multi-layer heat dissipation component, including a first cooling mechanism and a second cooling mechanism nested coaxially, and both the first cooling mechanism and the second cooling mechanism are provided with heat dissipation fins for heat dissipation;

[0008] The driving mechanism includes a brushless motor fixedly connected to the inner top of the lamp cover. The output end of the brushless motor is fixedly connected with a threaded rod, and a permanent magnet array is coaxially and fixedly arranged on the outer cylindrical surface of the threaded rod; 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 region;

[0009] The dynamic heat dissipation adjustment module drives the heat dissipation fins of the first cooling mechanism and the second cooling mechanism to perform angle adjustment and change in the interlayer spacing through the rotation of the threaded rod;

[0010] An arc-shaped notch covered with a waterproof film is provided on the outer wall of the lamp cover. When the heat dissipation fins are unfolded, they correspond to the position of the arc-shaped notch to form an air flow channel, and a hydrophobic coating is provided on the surface of the heat dissipation fins.

[0011] As a further solution of the present invention: the first cooling mechanism includes a first support plate fixed to the inner bottom of the lamp cover; a support plate provided at the center of the first support plate, which is provided with an annular array with limit rods in the circumferential direction; a first collar sleeved on the threaded rod, and the first collar is fixedly connected to the support plate through the limit rod; a first limit plate is fixedly connected to the outer circumferential surface of the first collar, and a first converging frame is hinged to one end of the first limit plate away from the first collar, and heat dissipation fins are embedded in the first converging frame.

[0012] As a further solution of the present invention: a second support plate fixedly connected to the first collar is provided on the outer circumferential surface of the threaded rod; the second cooling mechanism includes a second collar sleeved on the outer circumferential surface of the threaded rod, a fixing plate arranged in a circumferential arrangement is fixedly connected to the outer circumferential surface of the second collar, a limit hole is opened inside the fixing plate close to the second collar, and a second converging frame is hinged to one side of the fixing plate.

[0013] As a further solution of the present invention: a threaded sleeve threadedly connected to the threaded rod is provided directly below the second collar, a bracket is fixedly connected to the middle of the inner side of the second converging frame, a connecting arm is jointly hinged between the bracket and the threaded sleeve, and the second converging frame is hinged to the threaded sleeve through the connecting arm; a fixing rod is fixedly connected to the upper surface of the second support plate, the fixing rod penetrates through the bracket and is fixedly connected to the fixing plate with a converging cover, and heat dissipation grooves are opened on the outer circumferential surface of the converging cover.

[0014] As a further solution of the present invention: the driving mechanism further includes a support rod fixedly connected to the outer circumferential surface of the modulation ring, and a toothed ring is fixedly connected to the modulation ring through the support rod; slots for the movement of the heat dissipation fins are opened inside both the first converging frame and the second converging frame, the second converging frame and the first converging frame are arranged in an alternating and overlapping manner, and the distance between them is adjusted by the displacement of the threaded sleeve on the threaded rod; transmission mechanisms for driving the rotation of the heat dissipation fins are arranged on the inner top walls of both the first converging frame and the second converging frame.

[0015] As a further solution of the present invention: The transmission mechanism includes limit seats arranged at both ends inside 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 inside 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. The first gear is meshed with the toothed ring to drive the support rod to rotate.

[0016] As a further solution of the present invention: Rotating rods arranged linearly are rotatably connected inside the limit seat. The rotating rods are all in a Z-shaped folded shape, and driven bevel gears meshed with the main bevel gear are arranged at the vertical turning points of the rotating rods.

[0017] As a further solution of the present invention: Second gears are fixedly connected to one ends of the rotating rods arranged linearly inside the limit seat. A gear belt is sleeved on the outer surfaces of the second gears. Heat dissipation fins are fixedly connected to the sides of the rotating rods close to the second gathering frame, and the heat dissipation fins are movably clamped inside the second gathering frame.

[0018] As a further solution of the present invention: The first gathering frame and the second gathering frame are arranged in a coaxial and staggered laminated manner. A cleaning mechanism for cleaning the dust on the surfaces of the first gathering frame and the second gathering frame is further arranged inside the lamp shade. The cleaning mechanism includes a fan blade fixed to a threaded rod for generating a directional air flow. A fixed sleeve coaxially connected is arranged 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 end of the bristles of the brush contacts the surface of the heat dissipation fin. When the fan blade rotates, the brush is synchronously driven to clean the surface of the heat dissipation fin.

[0019] As a further solution of the present invention: A conductive fiber layer is arranged at the flexible end of the brush, and an antistatic coating is applied to the surface of the heat dissipation fin.

[0020] The above technical solution provided by the present invention has at least the following beneficial effects compared with the prior art:

[0021] (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.

[0022] (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.

[0023] (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

[0024] 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.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a cross-sectional view of the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the lampshade of the present invention;

[0028] Figure 4 for Figure 3 Schematic diagram of split connection;

[0029] Figure 5 Schematic connection diagram of the driving mechanism and the second cooling mechanism of the present invention;

[0030] Figure 6 Schematic connection diagram of the driving mechanism and the transmission mechanism of the present invention;

[0031] Figure 7 is Figure 6 Partial enlarged schematic diagram at position A in

[0032] Figure 8 Schematic connection diagram of the cleaning mechanism of the present invention.

[0033] Reference numerals:

[0034] 1, lamp cover; 2, waterproof film; 3, LED substrate;

[0035] 4, first cooling mechanism; 41, first support plate; 42, support plate; 43, limiting rod; 44, first collar; 45, first limiting plate; 46, first gathering frame;

[0036] 5, second support plate;

[0037] 6, driving mechanism; 61, brushless motor; 62, threaded rod; 63, permanent magnet array; 64, modulation ring; 65, toothed ring;

[0038] 7, second cooling mechanism; 71, second collar; 72, fixing plate; 73, limiting hole; 74, second gathering frame; 75, threaded sleeve; 76, support arm; 77, bracket;

[0039] 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;

[0040] 9, heat dissipation fins;

[0041] 10, gathering cover; 101, heat dissipation groove; 11, cleaning mechanism; 111, fan blade; 112, fixing sleeve; 113, connecting plate; 114, brush.

[0042] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and does not intend to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0043] The following will describe in detail 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 should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0044] As Figures 1 to 8 shown, an embodiment of the present invention provides an energy-saving LED lamp with a cooling structure, including a lamp cover 1, an LED substrate 3 disposed at the bottom of the lamp cover 1, and a heat dissipation system; the heat dissipation system includes:

[0045] A multi-layer heat dissipation component, including a first cooling mechanism 4 and a second cooling mechanism 7 nested coaxially, and heat dissipation fins 9 for heat dissipation are provided on both the first cooling mechanism 4 and the second cooling mechanism 7;

[0046] The driving mechanism 6 includes a brushless motor 61 fixedly connected to the inner top of the lamp cover 1. The output end of the brushless motor 61 is fixedly connected with a threaded rod 62, and a permanent magnet array 63 is coaxially and fixedly arranged on the outer cylindrical 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 path modulation region;

[0047] 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 perform angle adjustment and layer spacing change through the rotation of the threaded rod 62;

[0048] An arc-shaped notch covered with a waterproof film 2 is provided on the outer wall of the lamp cover 1. When the heat dissipation fins 9 are unfolded, they correspond to the position of the arc-shaped notch to form an air flow channel, and a hydrophobic coating is provided on the surface of the heat dissipation fins 9.

[0049] As Figure 2 、 Figure 3 、 Figure 4 shown, the first cooling mechanism 4 includes a first support plate 41 fixed to the inner bottom of the lamp cover 1; a support plate 42 disposed at the center of the first support plate 41, which is provided with an annular array with limit rods 43 in the circumferential direction; a first sleeve ring 44 sleeved on the threaded rod 62, and the first sleeve ring 44 is fixedly connected to the support plate 42 through the limit rods 43; a first limit plate 45 is fixedly connected to the outer cylindrical surface of the first sleeve ring 44, and a first converging frame 46 is hinged to one end of the first limit plate 45 away from the first sleeve ring 44, and heat dissipation fins 9 are embedded in the first converging frame 46.

[0050] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown, a second support plate 5 fixedly connected to the first collar 44 is provided on the outer circumferential surface of the threaded rod 62; the second cooling mechanism 7 includes a second collar 71 sleeved on the outer circumferential surface of the threaded rod 62. A fixed plate 72 arranged in a circumferential arrangement is fixedly connected to the outer circumferential surface of the second collar 71. A limiting hole 73 is opened inside the fixed plate 72 on the side close to the second collar 71, and a second converging frame 74 is hinged to one side of the fixed plate 72.

[0051] As Figure 5 , Figure 6 , Figure 7 shown, a threaded sleeve 75 threadedly connected to the threaded rod 62 is provided directly below the second collar 71. A bracket 77 is fixedly connected to the middle of the inner side of the second converging frame 74. An arm 76 is jointly hinged between the bracket 77 and the threaded sleeve 75, and the second converging frame 74 is hinged to the threaded sleeve 75 through the arm 76; a fixed rod is fixedly connected to the upper surface of the second support plate 5. The fixed rod passes through the bracket 77 and is fixedly connected to the converging cover 10 with the fixed plate 72. Heat dissipation grooves 101 are opened on the outer circumferential surface of the converging cover 10.

[0052] As Figure 4 , Figure 5 , Figure 6 , Figure 7 shown, the driving mechanism 6 further includes a support rod fixedly connected to the outer circumferential surface of the modulation ring 64. The modulation ring 64 is fixedly connected to a toothed ring 65 through the support rod; notches for the movement of the heat dissipation fins 9 are opened inside both the first converging frame 46 and the second converging frame 74. The second converging frame 74 and the first converging frame 46 are arranged in an interleaved and stacked manner, and the distance between the two is adjusted by the displacement of the threaded sleeve 75 on the threaded rod 62; transmission mechanisms 8 for driving the rotation of the heat dissipation fins 9 are provided on the inner top walls of both the first converging frame 46 and the second converging frame 74.

[0053] To solve the problem of insufficient heat dissipation in existing LED lights during use due to limited traditional heat dissipation area, the above technical solution is adopted to solve it. The above technical solution mainly consists of a first cooling mechanism 4, a second cooling mechanism 7, a driving mechanism 6, a transmission mechanism 8, and heat dissipation fins 9. When the temperature of the LED light rises, the control system triggers 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 its outer cylindrical surface rotates synchronously. Through non-contact magnetic coupling, it drives the modulation ring 64 on the radial outer side to rotate accordingly (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 its outer cylindrical surface. The gear ring 65 meshes with the gear of the transmission mechanism 8, transmitting the rotational power to the rotating shaft of the heat dissipation fins 9, causing the heat dissipation fins 9 to rotate and unfold or fold up in the notch. Since the structures and functions of the first gathering frame 46 and the second gathering frame 74 are the same, when the threaded rod 62 rotates, under the limiting action of the limiting rod 43 and the fixed rod, the threaded sleeve 75 generates an axial displacement (moves up or down) on the threaded rod 62, and the threaded sleeve 75 pulls the support 77 of the second gathering frame 74 through the articulated support arm 76, causing the second gathering frame 74 to swing around the hinge point of the fixed plate 72, changing its interlayer spacing from the first gathering frame 46. The heat dissipation fins 9 of the second gathering frame 74 are also driven to rotate through the transmission mechanism 8, forming an interleaved and stacked air flow channel. At the same time, the transmission mechanism 8 drives the heat dissipation fins 9 to rotate around their own axes (such as 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 air to be discharged from the heat dissipation slots 101, 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 film 2 ensures that the arc-shaped notch can still maintain ventilation in rainy days.

[0054] During the above operation process, through the rotation of the threaded rod 62, the angle adjustment (rotation and unfolding) and interlayer spacing change (interleaved and stacked) of the heat dissipation fins 9 are simultaneously achieved, and the heat dissipation area and air flow efficiency can be optimized in real time according to the temperature, avoiding the problem of insufficient heat dissipation in LED lights during use; the non-contact transmission between the permanent magnet array 63 and the modulation ring 64 avoids mechanical wear, extends the service life, reduces noise at the same time, and is suitable for high-humidity environments (such as outdoor lighting). At the same time, the rotation and unfolding of the heat dissipation fins 9 and the arc-shaped notch form a directional air flow channel, which cooperates with the heat dissipation slots 101 of the gathering cover 10 to realize the cycle of "inhalation - acceleration - discharge" of air, improving the heat dissipation efficiency; and a hydrophobic coating is applied to the heat dissipation fins 9 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. And by actively adjusting the heat dissipation intensity, the brushless motor 61 is only started when needed, reducing the overall power consumption; the multi-layer nested structure reduces the use of materials and realizes lightweight design.

[0055] Such asFigure 6 , Figure 7 As shown in Figure 7 , the transmission mechanism 8 includes limit seats 82 arranged at both inner ends 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. The top of the limit seat 82 is fixedly connected with an auxiliary seat 83. 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 meshed with the toothed ring 65 to drive the support rod to rotate.

[0056] As Figure 6 , Figure 7 shown in Figure 6 , rotatable rods 86 arranged linearly are rotatably connected inside the limit seat 82. The rotatable rods 86 are all in a Z-shaped bent form, and a driven bevel gear 87 meshed with the main bevel gear 85 is arranged at the vertical turning position of the rotatable rod 86.

[0057] As Figure 6 , Figure 7 shown in Figure 6 , one ends of the rotatable rods 86 arranged linearly inside the limit seat 82 are all fixedly connected with second gears 88. A gear belt 89 is sleeved on the outer surfaces of the second gears 88 together. Heat dissipation fins 9 are fixedly connected to one side of the rotatable rods 86 close to the second gathering frame 74, and the heat dissipation fins 9 are movably clamped inside the second gathering frame 74.

[0058] When the threaded rod 62 rotates, the permanent magnet array 63 on its outer cylindrical surface rotates synchronously. Through non-contact magnetic coupling, it drives the modulation ring 64 on the radial outer side to rotate accordingly (the torque is transmitted through the magnetic field in the magnetic circuit modulation area). The modulation ring 64 drives the toothed ring 65 to rotate through the support rods on its outer cylindrical surface. The toothed ring 65 drives the support rod to rotate around its axis through the meshing with the first gear 84. And the rotation of the support rod is synchronously transmitted to the main bevel gear 85 fixed to the bottom of its outer cylindrical surface, making it rotate around the vertical direction (perpendicular to the axis of the support rod). And because the main bevel gear 85 is meshed with the driven bevel gear 87 at the vertical turning position of each rotatable rod 86, the power direction is changed from vertical to horizontal. The rotatable rod 86 rotates around its own axis due to the drive of the driven bevel gear 87. During the rotation of the rotatable rod 86, all the second gears 88 are connected in series through the gear belt 89 to ensure that the rotation speeds and rotation directions of the multiple rotatable rods 86 are completely synchronized. And because heat dissipation fins 9 are fixed to one side of the rotatable rods 86 close to the second gathering frame 74. When the rotatable rod 86 rotates, the heat dissipation fins 9 swing accordingly, and their movable ends form a periodic reciprocating motion inside the second gathering frame 74. And during the whole operation process, the vertical plate 81 rigidly connects the limit seat 82 and the second support plate 5 to prevent the offset caused by vibration or load during the transmission process and ensure the meshing accuracy between the main bevel gear 85 and the driven bevel gear 87.

[0059] During the above operation process, through the vertical meshing design of the main bevel gear 85 and the driven bevel gear 87, the efficient conversion of the power direction from vertical to horizontal is realized, meeting the requirements of complex spatial layout; the bending structure of the Z-shaped rotating rod 86 is used to complete power transmission in a limited space, avoiding interference with other components. At the same time, the gear belt 89 is used to link multiple second gears 88 to ensure the synchronous rotation of all rotating rods 86, avoiding mechanical wear or vibration caused by speed differences. And 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, improving the heat dissipation efficiency and preventing the performance degradation of the device 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, reducing vibration and noise during gear meshing. The rotational support of the auxiliary seat 83 for the support rod further improves the transmission accuracy and service 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 gears and the rotating rod 86.

[0060] As Figure 4 , Figure 8 shown, the first gathering frame 46 and the second gathering frame 74 are arranged in a coaxial and staggered layer-by-layer manner, and a cleaning mechanism 11 for cleaning the dust on the surfaces of the first gathering frame 46 and the second gathering frame 74 is further provided inside the lamp housing 1. The cleaning mechanism 11 includes a fan blade 111 fixed to the threaded rod 62 for generating a directional air flow; a fixed sleeve 112 connected coaxially is arranged 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, one end of the connecting plate 113 is fixedly connected with a brush 114, and the end of the bristles 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.

[0061] As Figure 4 , Figure 8 shown, a conductive fiber layer is provided at the flexible end of the brush 114, and an antistatic coating is applied to the surface of the heat dissipation fin 9.

[0062] When the threaded rod 62 rotates, the fan blades 111 fixed thereon rotate synchronously to generate a directional air flow, and the air flow direction is towards the interleaved and stacked area of the first converging frame 46 and the second converging frame 74 for blowing away the dust accumulated on the surface area. At the same time, the rotation of the fan blades 111 is transmitted to the connecting plate 113 through the coaxially connected fixed 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 fixed sleeve 112, the flexible bristles at its end keep in contact with the surface of the heat dissipation fins 9; the rotation of the brush 114 is used to remove the dust on the surface of the heat dissipation fins 9 by means of friction and sweeping, and at the same time, the directional air flow blows the peeled dust away from the converging frame area to avoid secondary adhesion. And when the conductive fiber layer at the flexible end of the brush 114 contacts the antistatic coating on the surface of the heat dissipation fins 9, through the electrostatic dissipation function of the conductive fiber, the static charges generated by the friction between the bristles and the fins are neutralized, and the antistatic coating further inhibits the dust from being electrostatically adsorbed on the surface of the heat dissipation fins 9, ensuring the high efficiency and durability of the dust cleaning process. And due to the coaxial interleaved and stacked design of the first converging frame 46 and the second converging frame 74, the brush 114 can cover the adjacent surfaces of the two converging frames when rotating, and the directional air flow penetrates through the stacked gaps to achieve dust cleaning without dead angles.

[0063] During the above operation process, while the fan blades 111 generate a directional air flow to assist in heat dissipation, they drive the brush 114 to clean dust through mechanical linkage, realizing the dual functions of heat dissipation and cleaning and reducing additional energy consumption. At the same time, the directional air flow directly acts on the stacked area of the converging frames, accelerating heat dissipation and synchronously removing dust, avoiding the decrease in heat dissipation efficiency caused by dust accumulation. And the combined design of the conductive fiber layer and the antistatic coating effectively eliminates the static electricity generated by friction during the dust cleaning process, prevents the dust from reattaching due to electrostatic adsorption, and significantly improves the thoroughness of dust cleaning.

[0064] When the present invention is in use, when the control system (such as a temperature sensor) detects an increase in the internal temperature of the LED lamp, it will trigger the start of the brushless motor 61, 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 cylindrical surface of the threaded rod 62 rotates synchronously. Through non-contact magnetic coupling, it drives the modulation ring 64 on the radial outer side to rotate accordingly (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 its outer cylindrical surface. The gear ring 65 meshes with the gear of the transmission mechanism 8, transmitting the rotational power to the rotating shaft of the heat dissipation fins 9, causing the heat dissipation fins 9 to rotate and unfold or fold up in the notch. And during the rotation of the threaded rod 62, under the limiting action of the limiting rod 43 and the fixed rod, the threaded sleeve 75 generates an 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 articulated support arm 76, causing the second gathering frame 74 to swing around the hinge point of the fixed plate 72, changing its layer spacing from the first gathering frame 46. The heat dissipation fins 9 of the second gathering frame 74 are also driven to rotate through the transmission mechanism 8, forming an interleaved and stacked air flow channel. At the same time, the transmission mechanism 8 drives the heat dissipation fins 9 to rotate around their own axes (such as 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 slots 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 the attachment of water vapor, and the waterproof film 2 ensures that the arc-shaped notch can still maintain ventilation on rainy days. And 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 changing the power direction from vertical to horizontal through the main bevel gear 85. And because 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. A heat dissipation fin 9 is fixed on one side of the rotating rod 86 close to the second gathering frame 74. When the rotating rod 86 rotates, the heat dissipation fin 9 swings accordingly, forming a periodic reciprocating motion. When the heat dissipation fin 9 unfolds, its position aligns with the arc-shaped notch on the outer wall of the lamp cover 1, forming a channel for external air to enter. The rotation of the heat dissipation fin 9 generates centrifugal force, accelerating the discharge of air from the heat dissipation slots 101, forming forced convection heat dissipation. And because the surface of the heat dissipation fin 9 is coated with a hydrophobic coating, it can effectively prevent the attachment of water vapor; the waterproof film 2 ensures that the arc-shaped notch can still maintain ventilation on rainy days; the fan blade 111 fixed on the threaded rod 62 rotates synchronously, generating a directional air flow 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 fixed sleeve 112, driving the brush 114 to revolve around the axis of the threaded rod 62, and the end of the flexible brush bristles remains in contact with the surface of the heat dissipation fin 9 to remove the dust on the surface of the heat dissipation fin 9 by friction and sweeping.When the conductive fiber layer at the flexible end of the brush 114 comes into contact with 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 dissipation function of the conductive fibers, further suppressing dust adsorption.

[0065] This invention covers any substitutions, modifications, equivalent methods and solutions made to the essence and scope of this invention. For the public to have a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention. However, those skilled in the art can also fully understand this invention without the description of these details. Additionally, well-known methods, processes, procedures, components and circuits, etc. are not described in detail to avoid unnecessary confusion to the essence of this invention.

[0066] The above are only the preferred embodiments of this invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of this invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this invention.

Claims

1. An energy-saving LED lamp with a cooling structure, comprising a lamp shade, an LED substrate disposed at the bottom of the lamp shade, and a heat dissipation system; characterized in that, The heat dissipation system includes: A multi-layer heat dissipation component, including a first cooling mechanism and a second cooling mechanism nested coaxially. Both the first cooling mechanism and the second cooling mechanism are provided with heat dissipation fins for heat dissipation; The driving mechanism includes a brushless motor fixedly connected to the inner top of the lampshade. The output end of the brushless motor is fixedly connected with a threaded rod, and a permanent magnet array is coaxially and fixedly arranged on the outer cylindrical surface of the threaded rod; 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 path modulation region; A dynamic heat dissipation adjustment module, which drives the heat dissipation fins of the first cooling mechanism and the second cooling mechanism to perform angle adjustment and layer spacing change through the rotation of the threaded rod; An arc-shaped notch covered with a waterproof film is provided on the outer wall of the lampshade. The heat dissipation fins correspond to the position of the arc-shaped notch when unfolded to form an air flow channel, and a hydrophobic coating is provided on the surface of the heat dissipation fins; The first cooling mechanism includes a first support plate fixed to the inner bottom of the lampshade; a tray arranged at the center of the first support plate, which is provided with an annular array with limit rods in the circumferential direction; a first collar sleeved on the threaded rod, and the first collar is fixedly connected to the tray through the limit rod; a first limit plate is fixedly connected to the outer cylindrical surface of the first collar, and a first converging frame is hinged to one end of the first limit plate away from the first collar, and heat dissipation fins are embedded in the first converging frame; a second support plate fixedly connected to the first collar is arranged on the outer cylindrical surface of the threaded rod; the second cooling mechanism includes a second collar sleeved on the outer cylindrical surface of the threaded rod, and a fixed plate arranged in a circumferential arrangement is fixedly connected to the outer cylindrical surface of the second collar. A limit hole is opened inside the fixed plate close to the second collar, and a second converging frame is hinged to one side of the fixed plate; a threaded sleeve threadedly connected to the threaded rod is arranged directly below the second collar. A bracket is fixedly connected to the middle of the inner side of the second converging frame, and an arm is jointly hinged between the bracket and the threaded sleeve, and the second converging frame is hinged to the threaded sleeve through the arm; a fixing rod is fixedly connected to the upper surface of the second support plate, and the fixing rod passes through the bracket and is fixedly connected to the fixed plate with a converging cover, and heat dissipation grooves are opened on the outer cylindrical surface of the converging cover.

2. The energy-saving LED lamp with a cooling structure according to claim 1, characterized in that, The driving mechanism further includes a support rod fixedly connected to the outer cylindrical surface of the modulation ring. The modulation ring is fixedly connected with a toothed ring through the support rod; notches for the movement of the heat dissipation fins are opened inside both the first converging frame and the second converging frame. The second converging frame and the first converging frame are arranged in an interleaved and stacked manner, and the distance between the two is adjusted by the displacement of the threaded sleeve on the threaded rod; a transmission mechanism for driving the rotation of the heat dissipation fins is arranged on the inner top walls of both the first converging frame and the second converging frame.

3. An energy-saving LED lamp with a cooling structure according to claim 2, characterized in that, The transmission mechanism includes limit seats arranged at both inner ends 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 inside 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. The first gear is meshed with a toothed ring to drive the support rod to rotate.

4. The energy-saving LED lamp with a cooling structure according to claim 3, wherein, Rotating rods arranged linearly are rotatably connected inside the limit seat. The rotating rods are all in a Z-shaped folded shape, and driven bevel gears meshed with the main bevel gear are arranged at the vertical turning points of the rotating rods.

5. An energy-saving LED lamp with a cooling structure according to claim 4, characterized in that One ends of the rotating rods arranged linearly inside the limit seat are all fixedly connected with second gears. A gear belt is sleeved on the outer surfaces of the second gears. Heat dissipation fins are fixedly connected to one sides of the rotating rods close to the second gathering frame, and the heat dissipation fins are movably clamped inside the second gathering frame.

6. The energy-saving LED lamp with a cooling structure according to claim 5, characterized in that, The first gathering frame and the second gathering frame are arranged in a coaxial and staggered laminated manner. A cleaning mechanism for cleaning the dust on the surfaces of the first gathering frame and the second gathering frame is further arranged inside the lamp shade. The cleaning mechanism includes a fan blade fixed to a threaded rod for generating a directional air flow. A fixed sleeve coaxially connected is arranged at the bottom of the fan blade. A connecting plate is fixedly connected to the outer cylindrical surface of the fixed sleeve. One end of the connecting plate is fixedly connected with a brush, and the end of the bristles of the brush contacts the surface of the heat dissipation fin. When the fan blade rotates, the brush is synchronously driven to clean the surface of the heat dissipation fin.

7. The energy-saving LED lamp with a cooling structure according to claim 6, characterized in that, A conductive fiber layer is arranged at the flexible end of the brush, and an antistatic coating is coated on the surface of the heat dissipation fin.

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