Heat dissipation structure of LED street lamp

Abstract

The heat dissipation structure comprises a lamp holder and a lamp pole, a connecting lantern ring connected with the lamp pole is arranged on one side of the lamp holder and comprises an LED lamp source, a lamp shell, a heat dissipation set, a driving mechanism and an electric power storage set, the electric power storage set capable of storing electric energy generated by a solar panel is arranged in the lamp holder, the electric power storage set can provide power for the LED lamp source, and the LED lamp source is connected with the lamp shell. According to the LED street lamp, the through groove is formed in the top of the lamp shell, the heat dissipation plate capable of being opened or closed is hinged in the through groove, and when the street lamp works, the heat dissipation plate can be opened, so that the heat dissipation plate is obliquely arranged, the windward area is equivalently increased, external cold air can better enter the lamp shell, the temperature of the heat dissipation fins is taken away, and the heat dissipation effect is improved. When the street lamp does not work, the heat dissipation plate is closed, the heat dissipation effect is greatly improved, and the service life of the street lamp is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of street light technology, and in particular to a heat dissipation structure for LED street lights. Background Technology

[0002] Road lighting is closely related to people's production and life. With the acceleration of urbanization in my country, LED streetlights have gradually come into people's view due to their advantages such as directional light emission, low power consumption, good driving characteristics, fast response speed, high shock resistance, long service life, and green environmental protection. They have become the new generation of energy-saving light source with the greatest advantage of replacing traditional light sources in the world. Therefore, LED streetlights will become the best choice for energy-saving renovation of road lighting.

[0003] For example, Chinese patent application number 202122335461.2, entitled "A Heat Dissipation Structure Based on LED Streetlights," describes a structure comprising a streetlight base, a streetlight housing, and a streetlight top cover. An LED light is installed between the streetlight base components. The streetlight housing is mounted on the streetlight base, and the top cover is installed on the top of the streetlight housing. A heat dissipation component is provided on the streetlight base, comprising a ventilation pipe, a vent pipe, a ventilation chamber, an L-shaped pipe, a partition, and a first insect-proof net. The ventilation chamber is installed at the front end of the streetlight base, and its bottom is connected to the streetlight base and is fitted with the first insect-proof net. Multiple partitions are installed in the middle. The top sidewall of the ventilation chamber is connected to the internal space of the street lamp housing through the L-shaped pipe. The air guide pipe is installed on the street lamp base, and the end of the air guide pipe is connected to the ventilation pipe. In the above technology, heat sinks are placed on the LED lamp board to conduct heat dissipated by the lamp beads, thereby reducing the operating temperature of the LED lamp and improving the service life of the LED lamp. However, in the above technology, the heat sink is placed inside the lamp housing and is wrapped by the lamp housing. Therefore, the heat dissipated by the heat sink will still remain inside the lamp housing. This limits the temperature reduction of the LED lamp, and the cooling effect is not high. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation structure for LED streetlights.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] A heat dissipation structure for an LED street light includes a lamp holder and a lamp pole, with a connecting collar for connecting to the lamp pole provided on one side of the lamp holder.

[0007] An LED light source is provided in the middle of the lamp holder, a first through groove is provided on the first through groove, and an LED light source is installed on the first recessed platform.

[0008] The lamp housing has steps around the lamp holder, and the lamp housing is installed on the steps. A second through groove is provided on the top of the lamp housing above the first through groove. A second recessed platform is provided on the second through groove. Heat dissipation plates are symmetrically hinged in the second through groove. The hinge axes of the two heat dissipation plates are close to each other. A solar panel is embedded on the top of the heat dissipation plate.

[0009] A heat dissipation assembly is provided between the LED light source and the heat sink;

[0010] A drive mechanism is provided on the lamp holder to enable the heat sink to open and close synchronously.

[0011] The lamp holder contains a power storage unit that can store electrical energy generated by the solar panel, and the power storage unit can provide power to the LED light source.

[0012] As a further embodiment of this utility model, the LED light source includes an LED light board placed on a first recessed platform, with a plurality of bulbs arranged sequentially at the bottom of the LED light board.

[0013] As a further embodiment of this utility model, the heat dissipation assembly includes multiple sets of first heat dissipation fins disposed on the LED light panel, each set of first heat dissipation fins being disposed above the light bulb, and a second heat dissipation fin is disposed at the bottom of the heat dissipation panel above the first heat dissipation fins, so the first heat dissipation fins and the second heat dissipation fins are staggered.

[0014] As a further embodiment of this utility model, a sealing plate is provided above the LED light board, and a plurality of third through slots are sequentially provided on the sealing plate, through which the first heat sink passes in sequence.

[0015] As a further embodiment of this utility model, the driving mechanism includes a hinge lug disposed on one side of the bottom of the heat sink plate, a guide groove disposed on the lamp holder below the hinge lug, a moving block symmetrically disposed in the guide groove, a threaded hole disposed on the moving block, a rotating shaft passing laterally through the threaded hole, an external thread symmetrically disposed on the rotating shaft that can be threadedly connected to the threaded hole, a motor connected to one end of the rotating shaft, a rotating plate fixed on the lamp holder, one end of the rotating shaft rotatably disposed on the rotating plate, and a connecting plate hinged between the moving block and the hinge lug.

[0016] As a further embodiment of this utility model, the energy storage group includes a battery mounted on a lamp holder, and a circuit board is provided on one side of the battery. The circuit board can be connected to a solar panel, an LED light source, and an external power line.

[0017] As a further embodiment of this utility model, a protective shell for enclosing the battery is provided on the lamp holder, and a wiring hole is provided on the protective shell.

[0018] As a further embodiment of this utility model, an inverted U-shaped plate with a hole is provided on the lamp holder directly below the gap between the two heat sinks. A first water inlet is provided at the top of the inverted U-shaped plate, and a first water outlet is provided at the bottom of the inverted U-shaped plate. A first water channel that can communicate with the connecting collar is provided on the lamp holder. The first water channel is connected to the first water outlet. A second water channel is provided on the second recessed platform. A second water outlet is provided on the second water channel. A second water inlet that can communicate with the second water outlet is provided on the U-shaped plate.

[0019] As a further embodiment of this utility model, a rain sensor is provided on the top of the lamp housing, and a lampshade that can cover the LED light source is provided at the bottom of the lamp housing.

[0020] In summary, the advantages of this utility model over the prior art are as follows: This utility model can provide a through groove at the top of the lamp housing, and then hinge a heat dissipation plate that can be opened or closed within the through groove. When the street light is working, the heat dissipation plate can be opened, so that the heat dissipation plate will be set at an angle, which is equivalent to increasing the windward area, allowing the outside cold air to enter the lamp housing better, thereby carrying away the temperature of the heat dissipation fins. When the street light is not working, the heat dissipation plate will be closed, which greatly improves the heat dissipation effect and extends the service life of the street light. Attached Figure Description

[0021] Figure 1 This is one of the three-dimensional views of this utility model.

[0022] Figure 2 This is the second perspective view of the present invention.

[0023] Figure 3 This is an exploded view of the present invention.

[0024] Figure 4 This is a cross-sectional view of the present invention.

[0025] Figure 5 This utility model Figure 3 A magnified view of point A in the middle.

[0026] Figure 6 This utility model Figure 4 A magnified view of point B in the middle.

[0027] Figure 7 This is a structural view of the first and second heat sinks in this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Lamp holder; 2. Lamp post; 3. Connecting collar; 4. First through slot; 5. First recessed platform; 20. LED light source; 6. Lamp housing; 7. Step; 8. Second through slot; 9. Second recessed platform; 10. Heat sink; 15. Solar panel; 40. Heat dissipation assembly; 60. Drive mechanism; 80. Battery storage assembly; 21. LED light panel; 22. Light bulb; 41. First heat sink; 42. Second heat sink; 31. Sealing plate; 32. Third through slot; 61. Hinge 62. Connector; 63. Guide groove; 64. Moving block; 65. Threaded hole; 66. Rotating shaft; 67. External thread; 68. Motor; 69. Rotating plate; 80. Connecting plate; 81. Battery; 82. Circuit board; 91. Protective shell; 92. Wiring hole; 93. Inverted U-shaped plate; 94. First water inlet; 96. First water outlet; 97. First water channel; 98. Second water channel; 99. Second water outlet; 300. Second water inlet; 100. Rain sensor; 200. Lamp cover. Detailed Implementation

[0029] The following detailed description provides various embodiments or examples for implementing the utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0030] Furthermore, spatial terms may be used, such as "below," "lower," "from the inside out," "above," "upper," and similar terms. These relational terms are used to facilitate the description of the relationship between some elements or features in the drawings and other elements or features. These spatial relational terms include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, degrees of rotation, or other orientations, and the spatially related adjectives used therein can be interpreted in the same way. Therefore, they should not be construed as limitations on the utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] The utility model will be further described below with reference to the accompanying drawings and specific embodiments: Figures 1 to 7 The heat dissipation structure of the LED street light shown includes a lamp holder 1 and a lamp post 2, with a connecting collar 3 on one side of the lamp holder 1 that connects to the lamp post 2.

[0032] LED light source 20, a first through groove 4 is provided in the middle of the lamp holder 1, a first recessed platform 5 is provided on the first through groove 4, and an LED light source 20 is installed on the first recessed platform 5.

[0033] The lamp housing 6 has steps 7 around the four sides of the lamp holder 1. The lamp housing 6 is installed on the steps 7. A second through groove 8 is provided on the top of the lamp housing 6 above the first through groove 4. A second recessed platform 9 is provided on the second through groove 8. Heat dissipation plates 10 are symmetrically hinged in the second through groove 8. The hinge axes of the two heat dissipation plates 10 are close to each other. A solar panel 15 is embedded on the top of the heat dissipation plate 10.

[0034] A heat dissipation assembly 40 is provided between the LED light source 20 and the heat sink 10.

[0035] A drive mechanism 60 is provided on the lamp holder 1 to enable the heat sink 10 to open and close synchronously.

[0036] The energy storage group 80 is provided in the lamp holder 1 to store the electrical energy generated by the solar panel 15. The energy storage group 80 can provide power to the LED light source 20.

[0037] A further embodiment of the LED light source 20 in this utility model: The LED light source 20 includes an LED light board 21 placed on a first recessed platform 5, and a plurality of bulbs 22 are arranged sequentially at the bottom of the LED light board 21.

[0038] A further embodiment of the heat dissipation assembly 40 in this utility model: The heat dissipation assembly 40 includes multiple sets of first heat dissipation fins 41 disposed on the LED lamp board 21. Each set of first heat dissipation fins 41 is disposed above the bulb 22. A second heat dissipation fin 42 is disposed at the bottom of the heat dissipation plate 10 above the first heat dissipation fins 41. Therefore, the first heat dissipation fins 41 and the second heat dissipation fins 42 are staggered.

[0039] A further embodiment of the LED light board 21 in this utility model: a sealing plate 31 is provided above the LED light board 21, and a plurality of third through slots 32 are sequentially provided on the sealing plate 31, through which the first heat sink 41 passes in sequence.

[0040] A further embodiment of the drive mechanism 60 in this utility model: The drive mechanism 60 includes a hinge lug 61 disposed on one side of the bottom of the heat sink 10, a guide groove 62 disposed on the lamp holder 1 below the hinge lug 61, a moving block 63 symmetrically disposed in the guide groove 62, a threaded hole 64 disposed on the moving block 63, a rotating shaft 65 passing laterally through the threaded hole 64, an external thread 66 symmetrically disposed on the rotating shaft 65 that can be threadedly connected to the threaded hole 64, a motor 67 connected to one end of the rotating shaft 65, a rotating plate 68 fixed on the lamp holder 1, one end of the rotating shaft 65 rotatably disposed on the rotating plate 68, and a connecting plate 69 hinged between the moving block 63 and the hinge lug 61.

[0041] A further embodiment of the energy storage group 80 in this utility model: The energy storage group 80 includes a battery 81 disposed on a lamp holder 1, and a circuit board 82 is provided on one side of the battery 81. The circuit board 82 can be connected to the solar panel 15, the LED light source 20 and the external wires respectively.

[0042] A further embodiment of the lamp holder 1 in this utility model: The lamp holder 1 is provided with a protective shell 91 that can enclose the battery 81, and the protective shell 91 is provided with a wiring hole 92.

[0043] A further embodiment of the lamp holder 1 of this utility model: an inverted U-shaped plate 93 with a hole is provided on the lamp holder 1 directly below the gap between the two heat sinks 10. A first water inlet 94 is provided at the top of the inverted U-shaped plate 93, and a first water outlet 96 is provided at the bottom of the inverted U-shaped plate 93. A first water channel 97 that can communicate with the connecting collar 3 is provided on the lamp holder 1. The first water channel 97 is connected to the first water outlet 96. A second water channel 98 is provided on the second recessed platform 9. A second water outlet 99 is provided on the second water channel 98. A second water inlet 300 that can communicate with the second water outlet 99 is provided on the U-shaped plate 95.

[0044] A further embodiment of the lamp housing 6 in this utility model: a rain sensor 100 is provided on the top of the lamp housing 6, and a lampshade 200 that can cover the LED light source 20 is provided at the bottom of the lamp housing 6.

[0045] In use: In the initial state, the solar panel 15 installed on the heat sink 10 collects solar energy, converts it into electrical energy, and transmits it to the energy storage group 80 through wires as a reserve power source. When the street light needs to work, the motor 67 starts, causing the shaft 65 to rotate, thereby moving the moving block 63 along the guide groove 62. Under the action of the connecting plate 69, the heat sink 10 opens, thereby increasing the windward area and allowing the outside cold air to enter the lamp housing better, thus removing the heat from the heat sink. A rain sensor 100 is installed on the lamp housing 6. When it rains, the heat sink 10 closes, at which time the first heat sink 41 and the second heat sink... The 42 plates will come into contact with each other, thereby transferring the heat emitted by the LED light source 20 during operation to the heat sink 10 through the first heat sink 41 and the second heat sink 42, and then cooling it with rainwater. This cooling effect is better. The function of the inverted U-shaped plate 93 and the second water channel 98 is to collect the rainwater that seeps in from the gap between the heat sink 10 and the lamp housing 6, and then guide it through the first water channel 97 to the connecting collar 3. The connecting collar 3 and the lamp post 2 are both hollow, and there is a water outlet at the bottom of the lamp post 2. This can better reduce the heat emitted by the LED light source 20 during operation and improve the service life of the street light.

[0046] The foregoing has shown and described the basic principles and main features of the utility model, as well as its advantages. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the utility model. Various changes and modifications can be made to the utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for an LED street light, comprising a lamp holder (1) and a lamp post (2), wherein a connecting collar (3) for connecting to the lamp post (2) is provided on one side of the lamp holder (1), characterized in that: LED light source (20), a first through groove (4) is provided in the middle of the lamp holder (1), a first recessed platform (5) is provided on the first through groove (4), and an LED light source (20) is installed on the first recessed platform (5); The lamp housing (6) has steps (7) on the four sides of the lamp holder (1), and the lamp housing (6) is installed on the steps (7). The top of the lamp housing (6) is provided with a second through groove (8) above the first through groove (4). A second recessed platform (9) is provided on the second through groove (8). Heat sinks (10) are symmetrically hinged in the second through groove (8). The hinge axes of the two heat sinks (10) are close to each other. A solar panel (15) is embedded on the top of the heat sink (10). A heat dissipation assembly (40) is provided between the LED light source (20) and the heat sink (10); A drive mechanism (60) is provided on the lamp holder (1) to enable the heat sink (10) to open and close synchronously; The energy storage group (80) is provided in the lamp holder (1) to store the electrical energy generated by the solar panel (15), and the energy storage group (80) can provide power to the LED light source (20).

2. The heat dissipation structure for an LED street light according to claim 1, characterized in that, The LED light source (20) includes an LED light panel (21) placed on the first sink (5), and a plurality of bulbs (22) are arranged sequentially at the bottom of the LED light panel (21).

3. The heat dissipation structure for an LED street light according to claim 2, characterized in that, The heat dissipation group (40) includes multiple sets of first heat sinks (41) disposed on the LED light panel (21). Each set of first heat sinks (41) is disposed above the bulb (22). A second heat sink (42) is disposed at the bottom of the heat dissipation plate (10) above the first heat sinks (41). Therefore, the first heat sinks (41) and the second heat sinks (42) are staggered.

4. The heat dissipation structure for an LED street light according to claim 3, characterized in that, A sealing plate (31) is provided above the LED light panel (21), and a plurality of third through slots (32) are provided on the sealing plate (31) in sequence, through which the first heat sink (41) passes in sequence.

5. The heat dissipation structure for an LED street light according to claim 1, characterized in that, The drive mechanism (60) includes a hinge ear (61) located on one side of the bottom of the heat sink (10). A guide groove (62) is provided on the lamp holder (1) below the hinge ear (61). Moving blocks (63) are symmetrically arranged in the guide groove (62). A threaded hole (64) is provided on the moving block (63). A rotating shaft (65) passes laterally through the threaded hole (64). External threads (66) that can be threadedly connected to the threaded hole (64) are symmetrically arranged on the rotating shaft (65). A motor (67) is connected to one end of the rotating shaft (65). A rotating plate (68) is fixed on the lamp holder (1). One end of the rotating shaft (65) is rotatably mounted on the rotating plate (68). A connecting plate (69) is hinged between the moving block (63) and the hinge ear (61).

6. The heat dissipation structure for an LED street light according to claim 1, characterized in that, The energy storage group (80) includes a battery (81) mounted on a lamp holder (1), and a circuit board (82) is provided on one side of the battery (81). The circuit board (82) can be connected to a solar panel (15), an LED light source (20), and an external power line.

7. The heat dissipation structure for an LED street light according to claim 6, characterized in that, The lamp holder (1) is provided with a protective shell (91) that can enclose the battery (81), and the protective shell (91) is provided with a wiring hole (92).

8. The heat dissipation structure for an LED street light according to claim 1, characterized in that, An inverted U-shaped plate (93) with a hole is provided on the lamp holder (1) directly below the gap between the two heat sinks (10). A first water inlet (94) is provided on the top of the inverted U-shaped plate (93), and a first water outlet (96) is provided on the bottom of the inverted U-shaped plate (93). A first water channel (97) that can communicate with the connecting collar (3) is provided on the lamp holder (1). The first water channel (97) is connected to the first water outlet (96). A second water channel (98) is provided on the second sink (9), and a second water outlet (99) is provided on the second water channel (98). A second water inlet (300) that can communicate with the second water outlet (99) is provided on the U-shaped plate (95).

9. The heat dissipation structure for an LED street light according to claim 1, characterized in that, A rain sensor (100) is provided on the top of the lamp housing (6), and a lamp cover (200) is provided at the bottom of the lamp housing (6) to cover the LED light source (20).

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