Street lamp with heat dissipation structure

Abstract

The utility model discloses a street lamp with a heat dissipation structure in the technical field of street lamps, which comprises a lamp post, a copper post is fixedly connected to the upper portion of the lamp post, a plurality of first heat dissipation aluminum sheets are fixedly connected to the outer side of the copper post, and an upper shell is fixedly connected to the copper post through a connecting rod. A middle shell is fixedly connected to the lower portion of the upper shell, a lampshade shell is connected to the lower portion of the middle shell, a first heat conduction pipe penetrates through and is welded to the top of the upper shell, and one end of the first heat conduction pipe penetrates through and is welded to the inner side of a copper column. The copper column is fixedly connected to the upper portion of the lamp post, the first heat dissipation aluminum sheets are fixedly connected to the outer side of the copper column, the purpose that heat is efficiently conducted to the external environment from the LED lamp beads is achieved, and the heat dissipation area is increased through the extra space of the upper portion of the lamp post.

Description

TECHNICAL FIELD

[0001] The utility model relates to street lamp technical field, especially a street lamp with heat dissipation structure. BACKGROUND

[0002] In recent years, with the acceleration of urbanization process and the continuous improvement of energy saving and environmental protection requirements, as an important part of urban infrastructure, the design and efficiency of street lamps are increasingly concerned. The traditional street lamp is mainly high pressure sodium lamp, but with the development of LED technology, LED street lamp gradually replaces the traditional light source, because it has higher energy efficiency, longer service life and lower maintenance cost and other advantages. However, although LED street lamp has made remarkable progress in energy saving, but the heat dissipation problem has been one of the key factors restricting its performance. Efficient heat dissipation structure not only can prolong the service life of LED lamp, but also can ensure its light efficiency stable output, reduce the light decay phenomenon caused by high temperature. Therefore, the heat dissipation solution for LED street lamp becomes the focus of many researches.

[0003] In the prior art, the method combining heat pipe and fin is a common efficient heat dissipation scheme at present, but the existing design often fails to fully consider the overall path optimization of heat conduction from LED chip to external environment, leading to the heat dissipation efficiency still to be improved. Especially in the case of high density layout of LED, local overheating phenomenon still occurs, which not only affects the luminous efficiency of LED, but also shortens its service life. In view of this, it is particularly urgent to develop a heat dissipation structure which can effectively solve the above problems to improve the overall performance of LED street lamp. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a street lamp with heat dissipation structure, including the lamp post, the upper part of lamp post is fixedly connected with copper column, the outside of copper column is fixedly connected with a plurality of first heat dissipation aluminum sheets, the copper column is fixedly connected with upper shell through connecting rod, the lower part of upper shell is fixedly connected with middle shell, the lower part of middle shell is connected with lampshade shell, the top of upper shell is penetrated and welded with first heat conduction pipe, one end of first heat conduction pipe is penetrated and welded in the inside of copper column, the front side and rear side of middle shell are respectively embedded with a plurality of second heat dissipation aluminum sheets, second heat conduction pipe is welded on second heat dissipation aluminum sheet, and the upper end of second heat conduction pipe is embedded in the lower part of upper shell, the inside of middle shell is installed with aluminum substrate, and the lower part of aluminum substrate is installed with lamp pearl.

[0005] The inside of connecting rod is equipped with cavity, the cavity is communicated with the inside of copper column, and a section of first heat conduction pipe is arranged in the inside of cavity.

[0006] A reinforcing rib is fixedly connected to the lower part of the upper shell. A first opening is provided on the reinforcing rib for the first heat pipe to pass through. An angle iron is welded between the reinforcing rib and the upper shell.

[0007] The top of the middle shell is provided with a copper top cover, and the copper top cover has heat dissipation holes and a second opening for the second heat pipe to pass through.

[0008] The middle housing has a strip-shaped opening for installing the second heat sink aluminum fin, and a connecting lug is welded to the lower part of the side wall of the middle housing.

[0009] A light-diffusing film is connected to the upper part of the lampshade housing, and a driving power supply is connected to the upper part of the aluminum substrate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: by fixing a copper column to the upper part of the lamp post and fixing several first heat dissipation aluminum sheets to the outside of the copper column, the purpose of efficiently transferring heat from the LED lamp beads to the external environment is achieved, and the heat dissipation area is increased by utilizing the extra space at the upper part of the lamp post.

[0011] Copper, as an excellent thermal conductor, has a thermal conductivity far exceeding that of ordinary metals, enabling it to quickly transfer heat from the upper casing to the copper pillar. Simultaneously, the addition of the first aluminum heat sink further expands the heat dissipation area, enhances natural convection, and promotes faster heat dissipation into the air.

[0012] By embedding several second heat dissipation aluminum fins on the front and rear sides of the central housing, and welding a second heat pipe on each second heat dissipation aluminum fin, heat can be quickly conducted from the core heat-generating part of the lamp body to a larger heat dissipation area, thereby significantly improving the overall heat dissipation efficiency.

[0013] This significantly improves the reliability and durability of the entire street lighting system. Ultimately, this innovative heat dissipation structure design not only overcomes the shortcomings of existing technologies, such as poor heat dissipation and short lifespan, but also provides strong support for improving the overall performance of LED streetlights. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of the upper part of the shell in this utility model.

[0017] Figure 3 This is a schematic diagram of the exploded structure of the lower part of the shell in this utility model.

[0018] Figure 4 This is a schematic diagram of the exploded structure of the central shell in this utility model.

[0019] In the diagram: 1. Lamp post; 2. First heat sink aluminum fin; 3. Copper post; 4. Connecting rod; 5. Upper housing; 51. Reinforcing rib; 52. First opening; 53. Angle iron; 6. Lamp cover housing; 7. Middle housing; 71. Second heat sink aluminum fin; 72. Heat dissipation hole; 73. Strip opening; 74. Second heat pipe; 75. Second opening; 76. Copper top cover; 77. Connecting lug; 8. First heat pipe; 9. Aluminum substrate; 91. Driver power supply; 92. Lamp bead; 10. Diffusion film. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-4 The street light shown includes a lamp post 1, a copper column 3 fixedly connected to the upper part of the lamp post 1, several first heat dissipation aluminum fins 2 fixedly connected to the outer side of the copper column 3, an upper housing 5 fixedly connected to the copper column 3 via a connecting rod 4, a middle housing 7 fixedly connected to the lower part of the upper housing 5, a lamp cover housing 6 connected to the lower part of the middle housing 7, a first heat conduction pipe 8 penetrating and welded to the top of the upper housing 5, one end of the first heat conduction pipe 8 penetrating and welded to the inner side of the copper column 3, several second heat dissipation aluminum fins 71 respectively embedded on the front and rear sides of the middle housing 7, a second heat conduction pipe 74 welded to the second heat dissipation aluminum fins 71, the upper end of the second heat conduction pipe 74 embedded in the lower part of the upper housing 5, an aluminum substrate 9 installed inside the middle housing 7, and an LED bead 92 installed at the lower part of the aluminum substrate 9.

[0022] The connecting rod 4 has a cavity inside, which is connected to the inside of the copper pillar 3. One section of the first heat pipe 8 is located inside the cavity.

[0023] A reinforcing rib 51 is fixedly connected to the lower part of the upper shell 5. A first opening 52 for the first heat conduction pipe 8 to pass through is provided on the reinforcing rib 51. An angle iron 53 is welded between the reinforcing rib 51 and the upper shell 5.

[0024] The top of the middle housing 7 is provided with a copper top cover 76, and the copper top cover 76 has heat dissipation holes 72 and a second opening 75 for the second heat pipe 74 to pass through.

[0025] The middle housing 7 has a strip-shaped opening 73 for installing the second heat sink 71, and a connecting lug 77 is welded to the lower part of the side wall of the middle housing 7.

[0026] A light-diffusing film 10 is connected to the upper part of the lampshade housing 6, and a driving power supply 91 is connected to the upper part of the aluminum substrate 9.

[0027] Working principle: During the operation of the lamp, the LED beads 92 generate a large amount of heat as the main heat source. This heat is first absorbed by the aluminum substrate 9 and then transferred to the copper top cover 76 and the upper housing 5 through air conduction.

[0028] Since one end of the first heat pipe 8 is inserted through and welded to the inside of the copper pillar 3, and the other end is connected to the upper shell 5, heat can be quickly conducted along the first heat pipe 8 to the copper pillar 3. Copper, as a highly thermally conductive material, can effectively and quickly conduct heat from the aluminum substrate 9 to several first heat dissipation aluminum fins 2 disposed on its outer side, and achieve initial heat dissipation through the contact between these aluminum fins and the air.

[0029] Several second heat dissipation aluminum fins 71 are embedded on the front and rear sides of the middle shell 7, and a second heat conduction pipe 74 is welded onto each second heat dissipation aluminum fin 71. The upper ends of these second heat conduction pipes 74 are embedded in the lower part of the upper shell 5, forming a continuous heat dissipation channel from bottom to top. In this way, the remaining heat can continue to be conducted upward along the second heat conduction pipes 74, and finally exchange heat with the air through the second heat dissipation aluminum fins 71, completing the final heat dissipation process.

[0030] In addition, the copper top cover 76 at the top of the middle housing 7 has heat dissipation holes 72 and a second opening 75 for the second heat pipe 74 to pass through. These designs are intended to optimize the path of heat dissipation from the inside of the lamp to the outside, ensuring that as much heat as possible can be dissipated and reducing the possibility of heat accumulation inside the lamp.

[0031] This design, featuring a multi-layered, multi-path heat dissipation mechanism, achieves efficient heat conduction and dissipation from the LED beads 92 to the external environment through the synergistic effect of components such as the copper pillar 3, the first heat sink 2, the first heat pipe 8, the connecting rod 4, the second heat sink 71, and the second heat pipe 74. This significantly improves the overall heat dissipation efficiency of the street light, ensuring stable operation and long lifespan of the lamp.

[0032] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A street light with a heat dissipation structure, comprising a lamp post (1), characterized in that: A copper column (3) is fixedly connected to the upper part of the lamp post (1). Several first heat dissipation aluminum fins (2) are fixedly connected to the outer side of the copper column (3). The copper column (3) is fixedly connected to the upper shell (5) through the connecting rod (4). The lower part of the upper shell (5) is fixedly connected to the middle shell (7). The lower part of the middle shell (7) is connected to the lamp cover shell (6). The top of the upper shell (5) is penetrated and welded with a first heat conduction pipe (8). One end of the first heat conduction pipe (8) is penetrated and welded to the inner side of the copper column (3). Several second heat dissipation aluminum fins (71) are respectively embedded on the front and rear sides of the middle shell (7). A second heat conduction pipe (74) is welded on the second heat dissipation aluminum fins (71). The upper end of the second heat conduction pipe (74) is embedded in the lower part of the upper shell (5). An aluminum substrate (9) is installed inside the middle shell (7). A lamp bead (92) is installed on the lower part of the aluminum substrate (9).

2. A street light with a heat dissipation structure according to claim 1, characterized in that: The connecting rod (4) has a cavity inside, which is connected to the inside of the copper column (3), and a section of the first heat pipe (8) is located inside the cavity.

3. A street light with a heat dissipation structure according to claim 1, characterized in that: The lower part of the upper shell (5) is fixedly connected with a reinforcing rib (51), and a first opening (52) for the first heat pipe (8) to pass through is provided on the reinforcing rib (51). An angle iron (53) is welded between the reinforcing rib (51) and the upper shell (5).

4. A street light with a heat dissipation structure according to claim 1, characterized in that: The top of the middle housing (7) is provided with a copper top cover (76), and the copper top cover (76) is provided with heat dissipation holes (72) and a second opening (75) for the second heat pipe (74) to pass through.

5. A street light with a heat dissipation structure according to claim 1, characterized in that: The middle housing (7) has a strip-shaped opening (73) for installing the second heat sink aluminum fin (71), and a connecting lug (77) is welded to the lower part of the side wall of the middle housing (7).

6. A street light with a heat dissipation structure according to claim 1, characterized in that: A light-diffusing film (10) is connected to the upper part of the lampshade housing (6), and a driving power supply (91) is connected to the upper part of the aluminum substrate (9).

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