Solar street lamp

Abstract

The utility model belongs to the technical field of street lamps, and discloses a solar street lamp which comprises a lamp holder, the lamp holder comprises a lamp shell and a rear cover plate, the rear cover plate is fixedly installed on the lamp shell through screws, a lamp bead assembling cavity is formed in the upper end of the lamp shell, an LED lamp panel is fixedly installed in the lamp bead assembling cavity, and a heat dissipation assembly is arranged in the lamp shell. The heat dissipation assembly comprises a heat conduction plate and a heat dissipation plate, the heat conduction plate is fixedly installed on one side of the LED lamp panel, a heat dissipation opening is formed in the lamp shell, the heat dissipation plate is arranged at the heat dissipation opening, a heat pipe is arranged between the heat conduction plate and the heat dissipation opening, a plurality of first heat conduction fins are fixedly connected to the top of the heat conduction plate, and the evaporation section of the heat pipe is fixedly connected with the first heat conduction fins. The heat conduction plate, the first heat conduction fins, the heat pipe, the heat dissipation plate, the second heat conduction fins and the third heat conduction fins are used for cooperatively dissipating heat, the heat dissipation efficiency is greatly improved, and external impurities and water vapor are effectively prevented from entering the lamp shell due to the fact that the heat conduction plate, the first heat conduction fins, the heat pipe, the heat dissipation plate, the second heat conduction fins and the third heat conduction fins are integrally arranged in a sealed mode.

Description

Technical Field

[0001] This utility model relates to the field of street light technology, and in particular to a solar street light. Background Technology

[0002] Solar streetlights, as a green and environmentally friendly lighting device, are widely used in urban roads, rural roads, and various outdoor locations. Solar streetlights utilize solar panels to convert solar energy into electrical energy, which is then stored in batteries to power the streetlights. Compared to traditional mains-powered streetlights, solar streetlights have significant advantages such as eliminating the need for cabling, easy installation, low operating costs, and zero environmental pollution.

[0003] However, in the actual use of solar streetlights, heat dissipation issues have gradually become prominent, becoming a key factor affecting their performance and lifespan. The lighting source of streetlights, such as LED chips, generates a large amount of heat during operation. If this heat cannot be dissipated effectively and in a timely manner, the temperature of the light source will rise. Excessive temperature will reduce the luminous efficiency of the LED chips and accelerate light decay, thus affecting the lighting effect and lifespan of the streetlight. According to relevant research, for every 10°C increase in the temperature of LED chips, their luminous flux decreases by approximately 3% to 5%. Prolonged exposure to high temperatures may also damage the LED chips.

[0004] Chinese utility model patent CN219473473U discloses a street light, including a lamp post and a solar panel. A mounting rod is fixedly installed on the upper outer wall of the lamp post, and a lamp head is fixedly installed on the left end of the mounting rod. A heat dissipation mechanism is provided on the upper end of the lamp head, and a lamp cover is fixedly installed on the lower end of the lamp head. A mounting base is fixedly installed on the top of the lamp post, and a connecting block is fixedly connected to the lower end of the solar panel.

[0005] The aforementioned streetlights can quickly absorb the heat generated by the lamp panel by installing a heat-absorbing plate on the lamp head, and dissipate the heat through the heat dissipation aluminum fins in the heat dissipation cavity. At the same time, heat dissipation grooves are added to the fins to further expand the heat dissipation area. Combined with the heat dissipation holes at the front and rear of the heat dissipation cavity, the heat on the fins can be easily transferred out, thereby greatly improving the heat dissipation effect inside the lamp head.

[0006] However, some shortcomings exist in actual use. For example, while the heat dissipation holes facilitate the dissipation of heat generated by the lamp board to the outside, external moisture can easily enter the lamp holder. Once moisture accumulates inside the lamp holder, it will adhere to the surface of critical components such as the circuit board. Prolonged exposure to a humid environment can reduce the insulation performance between electronic components, leading to short circuits. This can not only damage the electronic components on the circuit board but, in severe cases, may even cause safety accidents such as fires.

[0007] Therefore, a solar street light is proposed. Utility Model Content

[0008] The purpose of this invention is to provide a solar street light that solves or at least alleviates one or more of the problems mentioned above and other problems existing in the prior art.

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] A solar street light includes a lamp head for the solar street light. The lamp head includes a lamp housing and a rear cover plate. The rear cover plate is fixedly installed on the lamp housing by screws. The upper end of the lamp housing has a lamp bead assembly cavity. An LED lamp board is fixedly installed in the lamp bead assembly cavity. A heat dissipation component is provided inside the lamp housing.

[0011] The heat dissipation assembly includes a heat-conducting plate and a heat dissipation plate. The heat-conducting plate is fixedly installed on the side of the LED lamp board away from the lamp bead assembly cavity. A heat dissipation port is opened on the lamp housing. The heat dissipation plate is located at the heat dissipation port. A heat pipe is arranged between the heat-conducting plate and the heat dissipation port. A plurality of first heat-conducting fins are fixedly connected to the top of the heat-conducting plate. The evaporation section of the heat pipe is fixedly connected to the first heat-conducting fins. The heat dissipation plate is fixedly connected to the condensation section of the heat pipe.

[0012] In a solar street light according to the present invention, a plurality of second heat-conducting fins are fixedly connected to the side of the heat dissipation plate near the heat dissipation port, and the second heat-conducting fins extend through the heat dissipation port to the outside.

[0013] In a solar street light according to the present invention, a plurality of third heat-conducting fins are equidistantly formed on the rear cover plate.

[0014] In a solar street light according to the present invention, a thermally conductive silicone grease layer is filled between the heat-conducting plate and the LED light panel.

[0015] In a solar street light according to the present invention, a first assembly groove is provided on the lamp housing, the first assembly groove is connected to the lamp bead assembly cavity, and a transparent lamp cover is fixedly installed in the first assembly groove.

[0016] In a solar street light according to the present invention, a second mounting groove communicating with the heat dissipation port is provided inside the lamp housing, and the heat dissipation plate is fixedly installed in the second mounting groove.

[0017] In a solar street light according to the present invention, one end of the lamp housing is provided with an arc-shaped mounting part for connecting with a street light pole, and both sides of the arc-shaped mounting part are provided with flanges, and the flanges are provided with connecting holes.

[0018] This utility model has at least the following beneficial effects:

[0019] This invention utilizes a heat-conducting plate, a first heat-conducting fin, a heat pipe, a heat sink, a second heat-conducting fin, and a third heat-conducting fin to work together to dissipate heat, significantly improving heat dissipation efficiency, reducing the temperature of the LED light panel, and extending its service life. Furthermore, the overall sealed design effectively prevents external impurities and moisture from entering the lamp housing. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the solar street light of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model without the transparent lampshade installed;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the lamp housing of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the rear cover plate of this utility model.

[0026] Explanation of icon numbers:

[0027] 1. Lamp housing; 101. Lamp bead assembly cavity; 102. First assembly slot; 103. Heat dissipation vent; 104. Second assembly slot; 105. Arc-shaped mounting part; 106. Connecting hole; 2. Transparent lampshade; 3. Heat dissipation plate; 4. LED lamp board; 5. Heat-conducting plate; 501. First heat-conducting fin; 502. Heat pipe; 6. Rear cover plate; 601. Third heat-conducting fin. Detailed Implementation

[0028] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Please refer to Figures 1 to 5As shown, an embodiment of this utility model provides a solar street light, including a lamp head for the solar street light. The lamp head includes a lamp housing 1 and a rear cover plate 6. The rear cover plate 6 is fixedly installed on the lamp housing 1 by screws. The upper end of the lamp housing 1 has a lamp bead assembly cavity 101. An LED lamp board 4 is fixedly installed in the lamp bead assembly cavity 101. The LED lamp board 4 is electrically connected to a storage battery. The storage battery is electrically connected to a solar panel. The solar panel converts solar energy into electrical energy and stores it in the storage battery to power the LED lamp board 4. An internal heat dissipation assembly is provided, comprising a heat-conducting plate 5 and a heat dissipation plate 3. The heat-conducting plate 5 is fixedly installed on the side of the LED light panel 4 away from the LED bead assembly cavity 101. A heat dissipation port 103 is provided on the lamp housing 1, and the heat dissipation plate 3 is located at the heat dissipation port 103. A heat pipe 502 is provided between the heat-conducting plate 5 and the heat dissipation port 103. Several first heat-conducting fins 501 are fixedly connected to the top of the heat-conducting plate 5. The evaporation section of the heat pipe 502 is fixedly connected to the first heat-conducting fins 501, and the heat dissipation plate 3 is fixedly connected to the condensation section of the heat pipe 502. With the above configuration, the LED light panel 4 generates heat during operation, which is transferred to the heat-conducting plate 5 that is closely connected to it. The first heat-conducting fins 501 on the heat-conducting plate 5 increase the heat dissipation area. After absorbing heat, the temperature of the evaporation section of the heat pipe 502 rises, and the internal working liquid vaporizes. The vapor carries heat and flows along the heat pipe 502 to the condensation section. In the condensation section, the steam liquefies upon cooling, transferring heat to the heat dissipation plate 3. The liquefied working liquid then flows back to the evaporation section under capillary action, thus achieving efficient heat dissipation through this cycle.

[0030] In this embodiment, a thermally conductive silicone grease layer is filled between the heat-conducting plate 5 and the LED light board 4.

[0031] In this embodiment, a number of second heat-conducting fins are fixedly connected to the side of the heat sink 3 near the heat dissipation port 103, and the second heat-conducting fins extend through the heat dissipation port 103 to the outside.

[0032] With the above configuration, after the heat sink 3 receives the heat transferred from the condensation section of the heat pipe 502, the second heat-conducting fins further increase the heat dissipation area of ​​the heat sink 3. These fins extend to the outside, making full contact with the outside air, and dissipate heat into the surrounding air through heat conduction and heat convection, thus accelerating the heat dissipation speed.

[0033] In this embodiment, a plurality of third heat-conducting fins 602 are equidistantly formed on the rear cover plate 6, which increases the heat dissipation area of ​​the rear cover plate 6. Heat inside the lamp head is transferred to the rear cover plate 6, and the third heat-conducting fins 602 quickly conduct the heat to the outside air, assisting the entire lamp head in heat dissipation and improving heat dissipation efficiency.

[0034] In this embodiment, a first assembly groove 102 is provided on the lamp housing 1. The first assembly groove 102 is connected to the lamp bead assembly cavity 101. A transparent lamp cover 2 is fixedly installed in the first assembly groove 102. The transparent lamp cover 2 is installed in the first assembly groove 102 to protect the LED lamp board 4 and prevent dust, rainwater and other external debris from entering the lamp bead assembly cavity 101. At the same time, it ensures that the light emitted by the LED lamp board 4 can pass through the transparent lamp cover 2 to illuminate the outside world.

[0035] In this embodiment, a second mounting groove 104 communicating with the heat dissipation port 103 is provided inside the lamp housing 1. The heat dissipation plate 3 is fixedly installed in the second mounting groove 104. The second mounting groove 104 provides an installation position for the heat dissipation plate 3, allowing it to be securely installed on the lamp housing 1 and tightly fitted with the heat dissipation port 103. This ensures that the heat transferred by the condensation section of the heat pipe 502 can be effectively dissipated through the heat dissipation plate 3, while also preventing external debris from entering the lamp housing 1 through the heat dissipation port 103 and affecting the operation of the heat dissipation component.

[0036] In this embodiment, one end of the lamp housing 1 is provided with an arc-shaped mounting part 105 for connecting with a street lamp pole. Both sides of the arc-shaped mounting part 105 are provided with flanges, and connection holes 106 are provided on the flanges.

[0037] The shape of the arc-shaped mounting part 105 is adapted to the street light pole. Through the connecting hole 106, bolts and clamps are used to firmly install the lamp housing 1 on the street light pole, ensuring the stable installation of the solar street light and enabling the street light to work normally.

[0038] Working principle:

[0039] The LED light panel 4 generates heat during operation, which is first absorbed by the heat-conducting plate 5. The first heat-conducting fin 501 assists the heat-conducting plate 5 in dissipating heat, while the heat pipe 502 quickly transfers the heat to the heat sink 3. The second heat-conducting fin on the heat sink 3 and the third heat-conducting fin 601 on the rear cover plate 6 dissipate the heat to the outside.

[0040] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A solar street light, characterized in that, The lamp head includes a lamp housing (1) and a rear cover plate (6). The rear cover plate (6) is fixedly installed on the lamp housing (1) by screws. The upper end of the lamp housing (1) is provided with a lamp bead assembly cavity (101). An LED lamp board (4) is fixedly installed in the lamp bead assembly cavity (101). A heat dissipation component is provided inside the lamp housing (1). The heat dissipation assembly includes a heat-conducting plate (5) and a heat dissipation plate (3). The heat-conducting plate (5) is fixedly installed on the side of the LED lamp board (4) away from the lamp bead assembly cavity (101). A heat dissipation port (103) is provided on the lamp housing (1). The heat dissipation plate (3) is located at the heat dissipation port (103). A heat pipe (502) is provided between the heat-conducting plate (5) and the heat dissipation port (103). A plurality of first heat-conducting fins (501) are fixedly connected to the top of the heat-conducting plate (5). The evaporation section of the heat pipe (502) is fixedly connected to the first heat-conducting fins (501). The heat dissipation plate (3) is fixedly connected to the condensation section of the heat pipe (502).

2. A solar street light according to claim 1, characterized in that: The heat sink (3) has several second heat-conducting fins fixedly connected to the side near the heat dissipation port (103), and the second heat-conducting fins extend to the outside through the heat dissipation port (103).

3. A solar street light according to claim 1, characterized in that: The rear cover plate (6) is provided with several third heat-conducting fins (601) formed at equal intervals.

4. A solar street light according to claim 2, characterized in that: A thermally conductive silicone grease layer is filled between the heat-conducting plate (5) and the LED light plate (4).

5. A solar street light according to claim 1, characterized in that: The lamp housing (1) is provided with a first assembly groove (102), which is connected to the lamp bead assembly cavity (101). A transparent lamp cover (2) is fixedly installed in the first assembly groove (102).

6. A solar street light according to claim 2, characterized in that: The lamp housing (1) has a second mounting groove (104) that communicates with the heat dissipation port (103) inside, and the heat dissipation plate (3) is fixedly installed in the second mounting groove (104).

7. A solar street light according to claim 1, characterized in that: One end of the lamp housing (1) is provided with an arc-shaped mounting part (105) for connecting with a street lamp pole. Both sides of the arc-shaped mounting part (105) are provided with flanges, and the flanges are provided with connecting holes (106).

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