Solar LED street lamp facilitating heat dissipation

Abstract

The solar LED street lamp comprises a supporting column, a mounting frame is fixedly connected to the top of the supporting column, a solar panel is mounted at the top of the mounting frame, a fixing rod is fixedly connected to the top end of the supporting column, a lamp body is mounted at the end of the fixing rod, and heat dissipation mechanisms are arranged on the periphery of the outer wall of the lamp body. A gas communication mechanism facilitating cold air introduction into the lamp shell is arranged at the bottom end of the lamp shell, a shell of the lamp body comprises the lamp shell and a lamp bottom cover, an LED lamp is arranged in the lamp bottom cover, the heat dissipation mechanism comprises heat dissipation fins, and the heat dissipation fins with the bottom ends of S-shaped structures are installed on the four side walls of the lamp shell at equal intervals. The LED street lamp has the beneficial effects that the heat dissipation fins of the S-shaped structure are combined with the heat dissipation copper pipes and double-fan forced convection, efficient combination of passive heat dissipation and active air cooling is achieved, the air cooling mechanism conducts refrigeration through the condenser, the air pump feeds cold air into the lamp shell, the LED core temperature can be obviously reduced, the illumination intensity of the street lamp can be maintained, and the service life of the street lamp is prolonged. The service life of the street lamp is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of solar LED street lamps, in particular to a solar LED street lamp which is convenient for heat dissipation. Background Art

[0002] LED street lights refer to street lights made of LED light sources. They have unique advantages such as high efficiency, safety, energy saving, environmental protection, long life, fast response speed, and high color rendering index. They are of great significance to energy saving in urban lighting. With the development of science and technology, street lights also use solar energy. Therefore, solar LED street lights are gradually appearing in people's field of vision. Solar LED street lights are bound to be the future development trend.

[0003] LED solar street lights use solar radiation as energy. During the day, solar panels are used to convert solar energy to charge batteries. At night, the batteries power LED light sources for lighting. There is no need to lay complex and expensive pipelines, and the layout of lamps can be adjusted at will. They are safe, energy-saving and pollution-free. They do not require manual operation and are stable and reliable, saving electricity and requiring maintenance. LED street lights will generate more heat due to long-term operation, which makes their own heat dissipation problem a hot research issue.

[0004] When solar LED street lights are working, the LED chips will generate a lot of heat. If the heat cannot be dissipated in time, the light efficiency will be reduced, the life will be shortened, or even damaged. The traditional heat dissipation fin structure is simple and the heat dissipation area is limited. Especially in high temperature environments, it is difficult to meet the heat dissipation requirements of high-power LED lights, resulting in heat accumulation. Some street lights use natural convection or a single fan for heat dissipation. The air flow path design is unreasonable, the heat exchange efficiency is low, and the heat dissipation effect is affected. For this reason, we propose a solar LED street light that is easy to dissipate heat. Summary of the invention

[0005] The object of the present invention is to provide a solar LED street lamp which is convenient for heat dissipation, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a solar LED street light that is easy to dissipate heat, comprising a support column, a mounting frame is fixedly connected to the top of the support column, and a solar panel is installed on the top of the mounting frame, a fixing rod is fixedly connected to the top of the support column, and a lamp body is installed on the end of the fixing rod, a heat dissipation mechanism is arranged around the outer wall of the lamp body, a gas connecting mechanism is arranged at the bottom end of the lamp housing for conveniently letting cold air into the interior of the lamp housing, the outer shell of the lamp body comprises a lamp housing and a lamp bottom cover, and an LED lamp is arranged in the lamp bottom cover, the heat dissipation mechanism comprises heat dissipation fins, and heat dissipation fins with S-shaped bottoms are equidistantly installed on the four side walls of the lamp housing, a mounting sleeve is arranged at one end of the lamp housing and the lamp bottom cover, and the mounting sleeve is fixed to the end of the fixing rod.

[0007] Preferably, heat dissipation copper tubes are equidistantly arranged on the top of the lamp board of the LED lamp in the lamp housing, a mounting rod is installed at the top of the inside of the lamp housing, and drive motors are symmetrically installed at both ends of the mounting rod, the end of the output shaft of the drive motor passes through the mounting rod and is fixed with fan blades, a fixed frame is fixed to the top of the lamp housing, and heat dissipation ports are equidistantly opened on the four side walls of the fixed frame, the heat dissipation ports are located between two adjacent heat dissipation fins, the top of the heat dissipation fins are fixed to the side wall of the fixed frame, and the top of the fixed frame is fixed with a heat dissipation cover.

[0008] Preferably, the gas connecting mechanism includes an air inlet, an air inlet is opened at the bottom of the lamp housing, and the air inlet passes through the lamp bottom cover, a gas cooling mechanism is arranged at the top of the inner wall of the air inlet, a frame-shaped absorbent cotton is arranged inside the air inlet at one end of the lamp bottom cover, and connecting ports are symmetrically opened at the top of the inner wall of the air inlet, and the connecting ports are connected with the inside of the shell.

[0009] Preferably, the gas cooling mechanism includes a frame-type water tank, a condenser, an air pump, a ventilation pipe and an exhaust pipe. The gas cooling mechanism is cooperatively installed at the top of the inside of the air inlet. An air pump is fixedly installed at one end of the frame-type water tank in the air inlet. The air inlet end of the air pump is arranged toward the frame-type water absorbent cotton. Two ventilation pipes are connected to the exhaust end of the air pump, and the two ventilation pipes are symmetrically installed in the frame-type water tank. Exhaust pipes are equidistantly arranged on the outside of the ventilation pipes, and the ends of the exhaust pipes extend into the interior of the lamp housing. A condenser is fixedly installed at the end of the frame-type water tank, and the output end of the condenser is connected to the frame-type water tank.

[0010] Preferably, a heat dissipation reinforcement frame plate is fixedly connected to the outer side of the lamp housing, and the heat dissipation fins penetrate the heat dissipation reinforcement frame plate.

[0011] Preferably, a section of the ventilation pipe located inside the frame-type water tank is arranged in a serpentine structure.

[0012] Preferably, the air inlet is located at an inner wall of one end of the lamp base cover and a filter is installed.

[0013] Preferably, the side walls of the fixing frame are provided with rain shields at the top ends of the heat dissipation openings.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention uses two driving motors to drive two fan blades respectively, which can raise the internal heat to the fixed frame and quickly discharge it through multiple heat dissipation ports on the fixed frame. Heat dissipation fins are arranged on the outer shell and the fixed frame. The heat dissipation fins with an S-shaped structure at the bottom can increase the heat dissipation area and greatly improve the heat dissipation effect.

[0016] 2. The present invention adopts S-shaped heat dissipation fins combined with heat dissipation copper tubes and dual fan forced convection to achieve a high-efficiency combination of passive heat dissipation and active air cooling. The gas cooling mechanism cools through the condenser, and the air pump sends cold air into the lamp housing, which can significantly reduce the core temperature of the LED, help maintain the lighting intensity of the street lamp, and greatly extend the service life of the street lamp.

[0017] 3. The housing of the present invention has a built-in temperature sensor for automatic monitoring. When the temperature exceeds the limit, the condenser and air pump are started for joint cooling to avoid continuous high energy consumption, which meets the energy-saving requirements of solar street lights. The fan and refrigeration system only work at high temperatures, which can reduce overall energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the lamp body structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the lamp body structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection structure between the lamp housing and the lamp base cover of the present invention;

[0023] Figure 6 It is a schematic diagram of the internal structure of the lamp housing of the present invention;

[0024] Figure 7 It is a schematic diagram of the fixing frame structure of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the lamp housing of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the gas communication mechanism of the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of the gas cooling mechanism of the present invention.

[0028] In the figure: 1. support column; 2. mounting frame; 3. solar panel; 4. fixing rod; 5. lamp body; 6. lamp shell; 7. lamp bottom cover; 8. heat dissipation mechanism; 9. mounting sleeve; 10. gas connection mechanism; 11. driving motor; 12. mounting rod; 13. fan blade; 14. heat dissipation copper tube; 15. fixing frame; 16. heat dissipation port; 17. heat dissipation fin; 18. rain shield; 19. heat dissipation cover; 20. heat dissipation reinforcement frame plate; 21. air inlet; 22. gas cooling mechanism; 23. frame-type absorbent cotton; 24. frame-type water tank; 25. condenser; 26. air pump; 27. ventilation pipe; 28. exhaust pipe; 29. ​​filter; 30. LED lamp. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a technical solution: a solar LED street lamp that is easy to dissipate heat, including a support column 1, a mounting frame 2 is fixedly connected to the top of the support column 1, and a solar panel 3 is installed on the top of the mounting frame 2, a fixing rod 4 is fixedly connected to the top of the support column 1, and a lamp body 5 is installed at the end of the fixing rod 4, and a heat dissipation mechanism 8 is arranged around the outer wall of the lamp body 5.

[0031] It should be noted that the solar panel 3 can convert sunlight energy into electrical energy. The solar panel 3 is composed of silicon-based semiconductors and generates direct current when exposed to sunlight. The battery, a lithium-ion battery, installed in the device optimizes the charging efficiency of the solar panel 3 to the battery through the maximum power point tracking controller. The setting of the heat dissipation mechanism 8 can accelerate the dissipation of heat in the inner cavity of the lamp housing 6.

[0032] The bottom end of the lamp housing 6 is provided with a gas connecting mechanism 10 for conveniently passing cold air into the interior of the lamp housing 6. The outer shell of the lamp body 5 includes the lamp housing 6 and the lamp bottom cover 7, and the lamp bottom cover 7 is provided with an LED lamp 30. The heat dissipation mechanism 8 includes heat dissipation fins 17. The four side walls of the lamp housing 6 are equidistantly installed with heat dissipation fins 17 with S-shaped structures at the bottom ends. One end of the lamp housing 6 and the lamp bottom cover 7 is provided with a mounting sleeve 9, and the mounting sleeve 9 is fixedly connected to the end of the fixing rod 4.

[0033] It should be noted that the lamp body 5 is composed of a lamp housing 6 and a lamp base cover 7. The LED lamp 30 is located in the lamp base cover 7. A circuit board is arranged inside the lamp housing 6. The LED lamp 30 is installed inside the lamp housing 6, and its lighting lamp is located in the lamp base cover 7. Heat dissipation fins 17 with an S-shaped bottom are installed around the outside of the lamp housing 6. The bottom of the heat dissipation fins 17 is bent in an S shape, which can increase the heat dissipation area; the top is fixed to the side wall of the fixed frame 15 to form a vertical heat dissipation channel.

[0034] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 A heat dissipation copper tube 14 is equidistantly arranged on the top of the lamp board of the LED lamp 30 in the lamp housing 6, a mounting rod 12 is installed at the top inside the lamp housing 6, and a driving motor 11 is symmetrically installed at both ends of the mounting rod 12, and the output shaft end of the driving motor 11 passes through the mounting rod 12 and is fixedly connected with a fan blade 13, a fixed frame 15 is fixedly connected to the top of the lamp housing 6, and four side walls of the fixed frame 15 are equidistantly provided with heat dissipation ports 16, and the heat dissipation ports 16 are located between two adjacent heat dissipation fins 17, the top of the heat dissipation fin 17 is fixed to the side wall of the fixed frame 15, and a heat dissipation cover plate 19 is fixedly connected to the top of the fixed frame 15.

[0035] It should be noted that a temperature sensor for monitoring the temperature is provided in the inner cavity of the lamp housing 6. During normal heat dissipation, heat is dissipated through multiple heat dissipation fins 17. When the temperature exceeds the set threshold, the temperature sensor transmits the monitoring signal to the controller set in the device, and the condenser 25 helps to cool the water in the frame-type water tank 24. The controller controls the air pump 26 to work. The wind absorbed by the heat dissipation port 16 is placed in two ventilation pipes 27. The wind in the ventilation pipes 27 is cooled by cold water, so that the cold wind is blown to the inner cavity of the lamp housing 6 through multiple air outlet pipes 28, which helps to quickly cool down the inside of the lamp housing 6. In conjunction with the operation of the drive motor 11, the heat in the lamp housing 6 is quickly moved upward and discharged through multiple heat dissipation ports 16, thereby achieving the purpose of efficient heat dissipation.

[0036] See also Figure 8 and Fig. 9 The gas communication mechanism 10 includes an air inlet 21. The bottom of the lamp housing 6 is provided with the air inlet 21, and the air inlet 21 passes through the lamp bottom cover 7. A gas cooling mechanism 22 is arranged at the top of the inner wall of the air inlet 21. A frame-shaped absorbent cotton 23 is arranged inside the air inlet 21 at one end of the lamp bottom cover 7. A connecting port is symmetrically arranged at the top of the inner wall of the air inlet 21, and the connecting port is connected with the inside of the lamp housing 6.

[0037] It should be noted that the setting of the frame-type absorbent cotton 23 can dehumidify the air entering the air inlet 21 to prevent moisture from entering the lamp housing 6. The frame-type absorbent cotton 23 is detachably installed inside the air inlet 21 for easy replacement. The connecting port inside the air inlet 21 is connected with the interior of the lamp housing 6, so that the wind entering the air inlet 21 enters the inner cavity of the lamp housing 6 through the connecting port, ventilates the inner cavity of the lamp housing 6, makes the air inside the inner cavity move upward, and is discharged through multiple heat dissipation ports 16, so that the air circulates and promotes the discharge of heat from the lamp housing 6.

[0038] See also Fig.10 The gas cooling mechanism 22 includes a frame-type water tank 24, a condenser 25, an air pump 26, a ventilation pipe 27 and an exhaust pipe 28. The gas cooling mechanism 22 is cooperatively installed at the top of the air inlet 21. An air pump 26 is fixedly installed at one end of the frame-type water tank 24 in the air inlet 21. The air inlet end of the air pump 26 is arranged toward the frame-type water-absorbing cotton 23. Two ventilation pipes 27 are connected to the exhaust end of the air pump 26, and the two ventilation pipes 27 are symmetrically installed in the frame-type water tank 24. Exhaust pipes 28 are equidistantly arranged on the outside of the ventilation pipes 27, and the ends of the exhaust pipes 28 extend into the interior of the lamp housing 6. A condenser 25 is fixedly installed at the end of the frame-type water tank 24, and the output end of the condenser 25 is connected to the frame-type water tank 24.

[0039] It should be noted that when the present invention is used, a battery is provided in the device for storing energy converted from solar energy. The battery provides a power source for the driving motor 11. An air inlet 21 is provided at the bottom of the lamp housing 6. The air inlet 21 is outside the inner cavity of the lamp housing 6. The air inlet 21 is connected to the inner cavity of the lamp housing 6 through a provided connecting port. When the driving motor 11 is working, the hot gas at the bottom is driven to move upward, and the external cool air enters the air inlet 21 and enters the inner cavity of the lamp housing 6 through the connecting port connected to the air inlet 21, pushing the hot air in the inner cavity of the lamp housing 6 to move upward, so that the hot air can be quickly dissipated through the multiple heat dissipation ports 16 on the four side walls of the fixing frame 15. The heat dissipation fins 17 on the four side walls of the lamp body 5 and the lamp housing 6 can accelerate the dissipation of heat. The S-shaped structure at the bottom The heat dissipation fins 17 of the structure can increase the heat dissipation area and help dissipate heat more quickly. A temperature sensor for monitoring the temperature is set in the inner cavity of the lamp housing 6. When the temperature exceeds the set threshold, the temperature sensor transmits the monitoring signal to the controller set in the device. The condenser 25 helps to cool the water in the frame water tank 24, and the controller controls the air pump 26 to work. The wind sucked by the heat dissipation port 16 is placed in two ventilation pipes 27. The wind in the ventilation pipes 27 is cooled by cold water, so that the cold wind is blown to the inner cavity of the lamp housing 6 through multiple air outlet pipes 28, which helps to quickly cool down the inside of the lamp housing 6. Cooperating with the operation of the drive motor 11, the heat in the lamp housing 6 is quickly moved upward and discharged through multiple heat dissipation ports 16, thereby achieving the purpose of efficient heat dissipation.

[0040] See also Figure 4 and Figure 5 A heat dissipation reinforcement frame plate 20 is fixedly connected to the outer side of the lamp housing 6 , and the heat dissipation fins 17 penetrate the heat dissipation reinforcement frame plate 20 .

[0041] It should be noted that the heat dissipation reinforcement frame plate 20 can strengthen the connection between each heat dissipation fin 17 and enhance the structural strength. The heat dissipation fin 17 increases the heat dissipation area by more than 35% compared with the traditional straight fins, accelerates heat conduction, and the setting of the heat dissipation reinforcement frame plate 20 can improve the ability to resist wind pressure.

[0042] See also Fig.10 The ventilation pipe 27 is located in a section inside the frame-type water tank 24 and is arranged in a serpentine structure.

[0043] It should be noted that the vent pipe 27 with a serpentine structure can prolong the contact time between air and cold water and improve the cooling efficiency.

[0044] See also Figure 5 The air inlet 21 is located at one end of the lamp bottom cover 7 and a filter 29 is installed on the inner wall.

[0045] It should be noted that the setting of the filter 29 can prevent external dust from entering the air inlet 21, and cooperate with the frame-type absorbent cotton 23 for double protection, so that the air entering the inner cavity of the lamp housing 6 can be dehumidified and dust-filtered, avoiding dust and water vapor from entering the inner cavity and affecting the operation of the LED lamp 30, and adapting to high humidity environments.

[0046] See also Figure 7 A rain shield 18 is provided on the side wall of the fixing frame 15 at the top of the heat dissipation opening 16 .

[0047] It should be noted that the provision of the rain shield 18 can prevent rainwater from entering the fixed frame 15 , and the inclined design of the rain shield 18 can prevent rainwater from flowing back.

[0048] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0049] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar LED street light that is easy to dissipate heat, characterized in that: The invention comprises a support column (1), the top of which is fixedly connected to a mounting frame (2), and the top of which is installed a solar panel (3), the top of which is fixedly connected to a fixing rod (4), and the end of which is installed a lamp body (5), the outer wall of which is provided with a heat dissipation mechanism (8), the bottom end of which is provided with a gas connection mechanism (10) for conveniently letting cold air into the interior of the lamp housing (6), the outer shell of which comprises a lamp housing (6) and a lamp bottom cover (7), and an LED lamp (30) is arranged in the lamp bottom cover (7), the heat dissipation mechanism (8) comprises heat dissipation fins (17), and the four side walls of the lamp housing (6) are equidistantly installed with heat dissipation fins (17) with S-shaped bottoms, one end of which is provided with a mounting sleeve (9), and the mounting sleeve (9) is fixedly connected to the end of the fixing rod (4).

2. A solar LED street light that is easy to dissipate heat according to claim 1, characterized in that: Heat dissipation copper tubes (14) are equidistantly arranged at the top of the lamp board of the LED lamp (30) in the lamp housing (6); a mounting rod (12) is installed at the top of the interior of the lamp housing (6); and drive motors (11) are symmetrically installed at both ends of the mounting rod (12); the end of the output shaft of the drive motor (11) passes through the mounting rod (12) and is fixedly connected to a fan blade (13); a fixed frame (15) is fixedly connected to the top of the lamp housing (6); and heat dissipation ports (16) are equidistantly opened on four side walls of the fixed frame (15); the heat dissipation ports (16) are located between two adjacent heat dissipation fins (17); the top of the heat dissipation fin (17) is fixed to the side wall of the fixed frame (15); and a heat dissipation cover plate (19) is fixedly connected to the top of the fixed frame (15).

3. A solar LED street light that is easy to dissipate heat according to claim 1, characterized in that: The gas communication mechanism (10) comprises an air inlet (21), the bottom of the lamp housing (6) is provided with an air inlet (21), and the air inlet (21) passes through the lamp bottom cover (7), a gas cooling mechanism (22) is arranged at the top of the inner wall of the air inlet (21), a frame-shaped absorbent cotton (23) is arranged inside the air inlet (21) at one end of the lamp bottom cover (7), and a communication port is symmetrically arranged at the top of the inner wall of the air inlet (21), and the communication port is connected to the inside of the housing (6).

4. A solar LED street light that is easy to dissipate heat according to claim 3, characterized in that: The gas cooling mechanism (22) comprises a frame-type water tank (24), a condenser (25), an air pump (26), a ventilation pipe (27) and an air outlet pipe (28). The gas cooling mechanism (22) is installed at the top of the air inlet (21). An air pump (26) is fixedly installed at one end of the frame-type water tank (24) in the air inlet (21). The air inlet end of the air pump (26) is arranged toward the frame-type water-absorbing cotton (23). The air outlet end of the air pump (26) is connected to two ventilation pipes (27), and the two ventilation pipes (27) are symmetrically installed in the frame-type water tank (24). The outer side of the ventilation pipe (27) is equidistantly provided with an air outlet pipe (28), and the end of the air outlet pipe (28) extends into the interior of the lamp housing (6). The condenser (25) is fixedly installed at the end of the frame-type water tank (24), and the output end of the condenser (25) is connected to the frame-type water tank (24).

5. A solar LED street light that is easy to dissipate heat according to claim 1, characterized in that: A heat dissipation reinforcement frame plate (20) is fixedly connected to the outer side of the lamp housing (6), and the heat dissipation fins (17) penetrate the heat dissipation reinforcement frame plate (20).

6. A solar LED street light that is easy to dissipate heat according to claim 4, characterized in that: The ventilation pipe (27) is located in a section inside the frame-type water tank (24) and is arranged in a serpentine structure.

7. A solar LED street light that is easy to dissipate heat according to claim 3, characterized in that: The air inlet (21) is located at an inner wall of one end of the lamp base cover (7) and is provided with a filter screen (29).

8. The solar LED street light for facilitating heat dissipation according to claim 2, characterized in that: The side walls of the fixing frame (15) are each provided with a rain shield (18) at the top end of the heat dissipation opening (16).

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