Cooling fin for greenhouse illuminating lamp

Abstract

The utility model discloses a radiating fin for a greenhouse illuminating lamp. The illuminating lamp aims to solve the technical problem that floating dust on the radiating fin of the illuminating lamp in a greenhouse cannot be cleaned thoroughly in the prior art. The heat dissipation device comprises a heat dissipation plate, the included angle of the center line of the section of the heat dissipation plate is an obtuse angle, the upper surface of the heat dissipation plate is fixedly connected with a plurality of first heat dissipation pieces, the upper surface of the heat dissipation plate is fixedly connected with second heat dissipation pieces located between every two adjacent first heat dissipation pieces, and a plurality of arc-shaped protrusions are integrally formed on the two sides of each first heat dissipation piece. A flow guide channel is formed between every two adjacent arc-shaped protrusions, and a cleaning mechanism is arranged above the heat dissipation plate. The cleaning mechanism capable of moving back and forth is arranged above the first radiating fin and the second radiating fin which are arranged in parallel, so that the surfaces of the first radiating fin and the second radiating fin can be kept clean, the efficiency of the radiating plate is greatly improved, and the service life of the illuminating lamp is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting lamps, and particularly relates to a heat sink for a greenhouse lighting lamp. Background Art

[0002] LED refers to a light-emitting diode, which is a semiconductor electronic component that can convert electrical energy into light energy. At present, LED lamps, as optoelectronic devices, have been widely used in life. However, during their operation, most of the electrical energy is dissipated in the form of heat. Since it is mainly the chip that generates heat and the chip area is small, with the increase of the input power, more and more heat will accumulate on the chip and the temperature will become higher and higher. Especially for high-power LED lamps, when their operating temperature exceeds the bearing temperature of the chip, the luminous efficiency of the LED lamp will rapidly decrease, resulting in obvious attenuation. At the same time, the emission wavelength of the device becomes longer and the color produces red shift, ultimately leading to a shortened service life. According to relevant research, for every 10-degree decrease in the temperature of the LED lamp, the life will be extended by 2 times.

[0003] Most of the existing agricultural greenhouses use LED lighting lamps with heat sinks for lighting and light supplement. Since the temperature in the greenhouse is constant throughout the year and the environment is humid, which is suitable for the growth of crops, the production rate of crops is high and the harvest times are many. However, whenever the crops are harvested, the crop plants must be cleared before the next crop is planted. During the process of clearing the plants, a large amount of floating dust will be generated, and this floating dust will float around and fall on the heat sink of the lighting lamp. If the floating dust on the heat sink is not cleaned regularly, resulting in the accumulation of floating dust, this will greatly reduce the heat dissipation efficiency of the heat sink and lead to a significant reduction in the service life of the lighting lamp; people usually use a blower to clean the floating dust accumulated on the heat sink, but this method can only blow off the surface floating dust and cannot clean it completely; therefore, it is necessary to design a heat sink for a greenhouse lighting lamp to overcome the above technical defects. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a heat sink for a greenhouse lighting lamp, and the main purpose of this lighting lamp is to solve the technical problem that the floating dust on the heat sink of the lighting lamp in the greenhouse cannot be thoroughly cleaned under the prior art.

[0006] (2) Technical Solutions

[0007] In order to solve the above technical problems, the present utility model provides a heat sink for a greenhouse lighting lamp, which includes a heat dissipation plate. The included angle of the central lines of the cross sections of the heat dissipation plate is an obtuse angle. A plurality of first heat dissipation fins are fixedly connected to the upper surface of the heat dissipation plate. Second heat dissipation fins are fixedly connected between adjacent two first heat dissipation fins on the upper surface of the heat dissipation plate. A plurality of arc-shaped protrusions are integrally formed on both sides of the first heat dissipation fin, and a diversion channel is formed between adjacent two arc-shaped protrusions. A cleaning mechanism is arranged above the heat dissipation plate.

[0008] Preferably, a plurality of first heat dissipation fins are arranged in parallel, a plurality of second heat dissipation fins are arranged in parallel. The cross section of the first heat dissipation fin is wider at the bottom and narrower at the top, and the height of the second heat dissipation fin is lower than that of the first heat dissipation fin.

[0009] Further, wire grooves are integrally formed on one side of three of the first heat dissipation fins, and clamping grooves are integrally formed at the upper ends of the two first heat dissipation fins on the right end.

[0010] Further, ear plates are fixedly connected to the four corners of the heat dissipation plate, and positioning columns are fixedly connected to the middle of the lower surface of the ear plates.

[0011] Further, the cleaning mechanism includes four fixing plates, which are respectively fixedly connected to the middle of the upper surfaces of the corresponding ear plates. A round rod is fixedly connected between the two fixing plates on the same side. A slider is slidably connected to the outer side of the round rod. A moving rod is fixedly connected between the two sliders. A plurality of connecting columns are fixedly connected to the lower surface of the moving rod. A cleaning rod is fixedly connected to the end of the connecting column far away from the moving rod.

[0012] Furthermore, the round rod is located above the first heat dissipation fin, and the central line of the cross section of the moving rod is parallel to the central line of the cross section of the heat dissipation plate.

[0013] Furthermore, the foot plate assembly is located between two self-locking universal wheels. The foot plate assembly includes two mounting columns, which are symmetrically and fixedly connected to the lower part of the fixing frame at the right end. The same mounting plate is fixedly connected to the bottoms of the two mounting columns. Two hinge grooves are symmetrically formed at the top of the right end of the mounting plate. An active column is damped and hinged inside each of the two hinge grooves. A limiting cavity is formed in the middle of the end of the active column far away from the mounting plate. A limiting plate is slidably connected to the inside of the limiting cavity. An extension column is fixedly connected to the middle of the right side of the limiting plate. A foot plate connecting column is damped and hinged between the other ends of the two extension columns. It is located between adjacent two first heat dissipation fins. The diameter of the cleaning rod is smaller than the distance between adjacent two first heat dissipation fins. A groove is formed at the middle of the bottom end of the cleaning rod at the position corresponding to the second heat dissipation fin. The size of the groove is larger than that of the second heat dissipation fin. Hard brushes are fixedly connected to the outer side of the cleaning rod and the inner wall of the groove. An arc-shaped rod is fixedly connected between the two top ends at the corner of the moving rod.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model integrally forms two hollow pads on the backrest and the seat plate respectively, and cooperates with ventilation holes, which not only ensures the stability of the lighting lamp, but also ensures the air circulation between the body and the lighting lamp. At the same time, the backrest conforms to ergonomics and cooperates with the inclined seat plate, which can change the center of gravity of the patient and avoid long-term compression on the buttocks and legs. This not only avoids the generation of pressure sores, but also improves the patient experience;

[0017] 2. The present utility model is provided with a cleaning mechanism that can move back and forth above the first heat sink and the second heat sink arranged in parallel. The moving rod can drive the cleaning rod and the hard brush to move back and forth through the connecting column, so that the cleaning rod and the hard brush on it can pass between two adjacent first heat sinks. Under the action of the hard brush, the accumulated floating dust can be cleared outside the heat dissipation plate, keeping the surfaces of the first heat sink and the second heat sink clean, greatly improving the efficiency of the heat dissipation plate and being beneficial to extending the service life of the lighting lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 is the front view structure schematic diagram of the present utility model;

[0020] Figure 3 is the structure schematic diagram of another perspective of the present utility model;

[0021] Figure 4 is the bottom-up three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 5 is the Figure 1 enlarged structure schematic diagram of part A in the present utility model.

[0023] The reference signs in the drawings are: 1. heat dissipation plate; 2. first heat sink; 3. second heat sink; 4. wire groove; 5. card slot; 6. arc-shaped protrusion; 7. ear plate; 8. positioning column; 9. cleaning mechanism; 10. fixing plate; 11. round rod; 12. slider; 13. moving rod; 14. connecting column; 15. cleaning rod; 16. groove; 17. arc-shaped rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] This specific embodiment is a heat sink for a greenhouse lighting lamp, and its structure schematic diagram is as Figures 1-5As shown in the figure, it includes a heat dissipation plate 1. The included angle of the central line of the cross-section of the heat dissipation plate 1 is an obtuse angle. A plurality of first heat dissipation fins 2 are fixedly connected to the upper surface of the heat dissipation plate 1. A second heat dissipation fin 3 is fixedly connected between adjacent two first heat dissipation fins 2 on the upper surface of the heat dissipation plate 1. A plurality of arc-shaped protrusions 6 are integrally formed on both sides of the first heat dissipation fin 2. A diversion channel is formed between adjacent two arc-shaped protrusions 6. A cleaning mechanism 9 is arranged above the heat dissipation plate 1.

[0025] During installation, the main board of the LED lighting lamp (not shown) is installed on two planes below the heat dissipation plate 1 in an existing manner. The heat dissipation plate 1, the first heat dissipation fins 2 and the second heat dissipation fins 3 can dissipate heat from the lighting lamp. The external air flow takes away the heat through the space between adjacent two first heat dissipation fins 2. At the same time, the arc-shaped protrusions 6 can increase the heat dissipation area, and under the action of the diversion channel, the air flow forms a turbulent air flow when passing through, greatly improving the heat dissipation efficiency. When dust accumulates on the first heat dissipation fins 2, the cleaning mechanism 9 can be used to clean the accumulated dust, so that the first heat dissipation fins 2 and the second heat dissipation fins 3 are kept clean, further improving the heat dissipation efficiency and prolonging the service life of the lighting lamp.

[0026] Among them, a plurality of first heat dissipation fins 2 are arranged in parallel, a plurality of second heat dissipation fins 3 are arranged in parallel. The cross-section of the first heat dissipation fin 2 is wider at the bottom and narrower at the top. The height of the second heat dissipation fin 3 is lower than that of the first heat dissipation fin 2. The parallel first heat dissipation fins 2 and second heat dissipation fins 3 are not only convenient for processing, but also can guide the air flow. The first heat dissipation fin 2 with a wider bottom and narrower top can increase the heat conduction area, thereby improving the heat dissipation efficiency.

[0027] In addition, wire grooves 4 are integrally formed on one side of three of the first heat dissipation fins 2, and clamping grooves 5 are integrally formed at the upper ends of the two rightmost first heat dissipation fins 2. The positions of the wire grooves 4 and the clamping grooves 5 can be set as required, as long as it is convenient for the installation of the circuit and the overall fixation.

[0028] In addition, ear plates 7 are fixedly connected to the four corners of the heat dissipation plate 1, and positioning columns 8 are fixedly connected to the middle of the lower surface of the ear plates 7. The positioning columns 8 can facilitate the pre-positioning during the installation of the heat dissipation plate 1 and the lighting lamp, and facilitate quick installation.

[0029] In addition, the cleaning mechanism 9 includes four fixing plates 10 which are respectively fixedly connected to the middle of the upper surfaces of the corresponding ear plates 7. A round rod 11 is fixedly connected between two fixing plates 10 on the same side. A slider 12 is slidably connected to the outer side of the round rod 11. A moving rod 13 is fixedly connected between the two sliders 12. A plurality of connecting columns 14 are fixedly connected to the lower surface of the moving rod 13. One end of the connecting column 14 far away from the moving rod 13 is fixedly connected to a cleaning rod 15. The center lines of the connecting column 14 and the cleaning rod 15 are parallel to the center line of the first heat sink 2. By moving the moving rod 13 back and forth, the connecting columns 14 and the cleaning rod 15 thereon can be driven to move back and forth, and the sliders 12 at both ends of the moving rod 13 can move back and forth on the round rod 11. The connecting column 14 and the cleaning rod 15 can pass through between two adjacent first heat sinks 2, so that the floating dust accumulated on the first heat sink 2 and the second heat sink 3 can be cleaned up.

[0030] In addition, the round rod 11 is located above the first heat sink 2, and the center line of the cross section of the moving rod 13 is parallel to the center line of the cross section of the heat dissipation plate 1. In this way, both the round rod 11 and the moving rod 13 are located above the first heat sink 2, avoiding interference during the movement of the moving rod 13 and facilitating the movement of the moving rod 13.

[0031] In addition, the connecting column 14 is located between two adjacent first heat sinks 2. The diameter of the cleaning rod 15 is smaller than the distance between two adjacent first heat sinks 2. A groove 16 is formed in the middle of the bottom end of the cleaning rod 15 at a position corresponding to the second heat sink 3. The size of the groove 16 is larger than that of the second heat sink 3. Hard bristles are fixedly connected to the outer side of the cleaning rod 15 and the inner wall of the groove 16. An arc-shaped rod 17 is fixedly connected between the two top ends at the corner of the moving rod 13. The cleaning rod 15 can pass through the wire groove 4 and the clamping groove 5. The length of the hard bristles is selected according to actual needs, so that the hard bristles can fully contact the side wall of the first heat sink 2 when passing through between the two first heat sinks 2. The hard bristles can be made of hard plastic to avoid abrasion to the first heat sink 2 and the second heat sink 3. The arc-shaped rod 17 can not only increase the strength of the moving rod 13, but also facilitate the forward and backward movement of the moving rod 13. When the cleaning rod 15 passes through the second heat sink 3, it can pass through the second heat sink 3, and the floating dust on the outer side of the second heat sink 3 can be cleaned under the action of the hard bristles. At the same time, the hard bristles at the bottom of the cleaning rod 15 can clean the removed floating dust out of the heat dissipation plate 1.

[0032] Working principle: When in use, the heat dissipation plate 1, the first heat sink 2 and the second heat sink 3 can dissipate heat from the lighting lamp. The external air flow takes away the heat through between two adjacent first heat sinks 2. At the same time, the arc-shaped protrusion 6 can increase the heat dissipation area, and under the action of the diversion channel, the air flow forms a turbulent air flow when passing through, greatly improving the heat dissipation efficiency.

[0033] When floating dust accumulates on the first heat sink 2, the arc-shaped rod 17 can be pushed and pulled back and forth. The arc-shaped rod 17 drives the moving rod 13 to move back and forth. The moving rod 13 can drive the connecting column 14 and the cleaning rod 15 thereon to move back and forth, and makes the sliders 12 at both ends of the moving rod 13 move back and forth on the round rod 11. The connecting column 14 and the cleaning rod 15 can pass between two adjacent first heat sinks 2, so that the cleaning rod 15 and the hard brush on the groove 16 clean the floating dust on the first heat sink 2 and the second heat sink 3. At the same time, the hard brush at the bottom of the cleaning rod 15 can clear the cleaned floating dust out of the heat dissipation plate 1, keeping the first heat sink 2 and the second heat sink 3 clean, which is beneficial to improving the heat dissipation efficiency and prolonging the service life of the lighting lamp.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A heat sink for a greenhouse lighting lamp, characterized in that: It includes a heat dissipation plate (1), the included angle of the central line of the cross-section of the heat dissipation plate (1) is an obtuse angle, a plurality of first heat dissipation fins (2) are fixedly connected to the upper surface of the heat dissipation plate (1), and a second heat dissipation fin (3) is fixedly connected to the upper surface of the heat dissipation plate (1) and located between two adjacent first heat dissipation fins (2). A plurality of arc-shaped protrusions (6) are integrally formed on both sides of the first heat dissipation fin (2), and a flow guide channel is formed between two adjacent arc-shaped protrusions (6). A cleaning mechanism (9) is arranged above the heat dissipation plate (1).

2. The heat sink for a greenhouse lighting lamp according to claim 1, characterized in that: The plurality of first heat dissipation fins (2) are arranged in parallel, the plurality of second heat dissipation fins (3) are arranged in parallel, the cross-section of the first heat dissipation fin (2) is wider at the bottom and narrower at the top, and the height of the second heat dissipation fin (3) is lower than that of the first heat dissipation fin (2).

3. The heat sink for a greenhouse lighting lamp according to claim 1, characterized in that: Wire grooves (4) are integrally formed on one side of three of the first heat dissipation fins (2), and clamping grooves (5) are integrally formed at the upper ends of the two rightmost first heat dissipation fins (2).

4. A heat sink for a greenhouse lighting lamp according to claim 1, characterized in that, Lug plates (7) are fixedly connected to the four corners of the heat dissipation plate (1), and positioning columns (8) are fixedly connected to the middle of the lower surface of the lug plates (7).

5. The heat sink for a greenhouse lighting lamp according to claim 1, characterized in that: The cleaning mechanism (9) includes four fixing plates (10), the four fixing plates (10) are respectively fixedly connected to the middle of the upper surface of the corresponding lug plates (7), a round rod (11) is fixedly connected between the two fixing plates (10) on the same side, a slider (12) is slidably connected to the outer side of the round rod (11), a moving rod (13) is fixedly connected between the two sliders (12), a plurality of connecting columns (14) are fixedly connected to the lower surface of the moving rod (13), and a cleaning rod (15) is fixedly connected to the end of the connecting column (14) far away from the moving rod (13).

6. The heat sink for a greenhouse lighting lamp according to claim 5, wherein: The round rod (11) is located above the first heat dissipation fin (2), and the central line of the cross-section of the moving rod (13) is parallel to the central line of the cross-section of the heat dissipation plate (1).

7. The heat sink for a greenhouse lighting lamp according to claim 5, characterized in that: The connecting column (14) is located between two adjacent first heat dissipation fins (2), the diameter of the cleaning rod (15) is smaller than the distance between two adjacent first heat dissipation fins (2), a groove (16) is opened at the middle of the bottom end of the cleaning rod (15) corresponding to the second heat dissipation fin (3), the size of the groove (16) is larger than that of the second heat dissipation fin (3), hard brushes are fixedly connected to the outer side of the cleaning rod (15) and the inner wall of the groove (16), and an arc-shaped rod (17) is fixedly connected between the two top ends at the corner of the moving rod (13).

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