A solar street light

Abstract

The present invention belongs to the technical field of lamp equipment, and discloses a new type of solar street light, including a lamp pole, a connector fixedly installed on the top of the lamp pole, two connection channels are provided inside the connector, a heat insulation board is fixedly connected to the upper surface of the connector, a liquid shell is fixedly connected to the upper surface of the heat insulation board, and a heat conduction board is fixedly connected to the middle of the liquid shell. The present invention opens the control valve to allow the liquid phase change liquid inside the cross tube to enter the outside of the heat conduction shell. The temperature of the liquid phase change liquid will rise while absorbing heat, thereby volatilizing into a gaseous state, and taking away heat in the process. When the liquid phase change liquid decreases, the control valve is opened, and the liquid pump works to replenish the liquid phase change liquid in the liquid storage chamber between the two partitions, thereby continuously dissipating the heat of the battery pack, thereby solving the problem that when the temperature is high during the day, the heat generated by the battery charging cannot be dissipated, resulting in reduced charging efficiency and shortened service life.

Description

Technical Field

[0001] The invention belongs to the technical field of lamp equipment, and in particular relates to a solar street lamp. Background Art

[0002] Solar street lights are energy-saving and environmentally friendly lamps powered by solar energy. They are used to replace traditional public electric lighting street lights. During the day, the solar panels of solar street lights are exposed to sunlight, absorb solar energy and convert it into electrical energy, while charging the battery at the same time. At night, the battery pack provides electricity to power the light source to achieve the lighting function.

[0003] However, the charging and discharging performance of the battery is affected by temperature. When the temperature of the battery drops, its charging capacity will also decrease significantly, and the discharge performance will also decrease significantly. Especially in the Middle East, where the temperature difference between day and night is large and the wind and sand are large, the solar radiation is strong during the day and the ground heats up rapidly. The high temperature during the day will make the heat generated by the solar panels unable to dissipate, causing the temperature of the solar panels to rise, resulting in a decrease in conversion efficiency and accelerated aging. In the process of charging the battery by solar panels, the heat generated by charging cannot be dissipated, resulting in a decrease in charging efficiency and shortening the service life. At night, there are no clouds to block it, and the heat from the ground is easily dissipated into the atmosphere, causing the temperature to drop sharply, which will reduce the discharge efficiency of the battery and increase internal energy loss. Summary of the invention

[0004] The object of the present invention is to provide a solar street light to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a solar street lamp comprises a lamp pole, a connector is fixedly installed on the top of the lamp pole, two connecting channels are provided inside the connector, an insulation board is fixedly connected to the upper surface of the connector, a liquid shell is fixedly connected to the upper surface of the insulation board, a heat conducting plate is fixedly connected to the middle of the liquid shell, a solar panel is fixedly connected to the upper surface of the heat conducting plate, a fixing plate is fixedly installed on the right side of the insulation board, a one-way exhaust valve is fixedly connected to the inside of the fixing plate, a heat insulation shell is fixedly connected to the curved surface of the lamp pole, a movable cover is movably installed on the front of the heat insulation shell, lighting mechanisms are fixedly installed on both sides of the heat insulation shell, two partitions are fixedly connected to the inside of the heat insulation shell, two heat conducting shells are fixedly connected to the upper surface of the lower partition, a battery pack is fixedly installed inside the heat conducting shell, a sealing plate is fixedly installed on the front of the heat conducting shell, a connecting plate is fixedly connected between the two partitions, a temperature sensor is fixedly installed on the side of the connecting plate close to the heat conducting shell, and a circuit board is fixedly installed between the two connecting plates.

[0006] Preferably, two liquid return valves are fixedly installed at the bottom of the lower partition, two air inlet valves and two one-way air return valves are fixedly installed inside the upper partition, a liquid pump is fixedly installed at the bottom of the lamp pole, the liquid outlet of the liquid pump is connected to a cross pipe, a control valve is fixedly installed in the middle of the cross pipe, and the lower end of the connecting head is connected to an L pipe.

[0007] Preferably, the lighting mechanism includes a connecting rod, a liquid channel is opened inside the connecting rod, the outer end of the liquid channel is slidably connected to an I-shaped rod, the outer end of the I-shaped rod is fixedly connected to a spring, the outer end of the spring is fixedly connected to a lamp housing, a lighting lamp is fixedly installed on the bottom of the lamp housing, the front and rear of the I-shaped rod are fixedly connected to fixing rods, a scraper is fixedly connected between the two fixing rods, the connecting rod is fixedly connected to the side of the insulation shell, and the scraper is adapted to the lower surface of the lighting lamp.

[0008] Preferably, two rectangular holes are provided on the surface of the insulation board, the two rectangular holes are adapted to the outer ends of the two connecting channels, the solar panel is fixedly connected to the liquid shell, a plurality of protrusions are provided inside the liquid shell, the upper partition and the upper part of the insulation shell form an air storage cavity, and the lower partition and the lower part of the insulation shell form a liquid storage cavity.

[0009] Preferably, the heat-conducting shell is not in contact with the heat-insulating shell, the connecting plate, and the upper partition, and the sealing plate is not in contact with the connecting plate and the upper partition.

[0010] Preferably, the upper end of the cross tube is connected to the left connecting channel, both ends of the middle part of the cross tube are fixedly connected to the connecting plate and connected to the side of the connecting plate close to the heat-conducting shell, the upper end of the L tube is connected to the right connecting channel, the lower end of the L tube is connected to the air storage chamber, and the liquid inlet of the liquid pump is connected to the liquid storage chamber.

[0011] Preferably, the liquid storage chamber is filled with an appropriate amount of phase change liquid, the liquid channel is filled with an appropriate amount of phase change liquid, the opening direction of the one-way exhaust valve is from the liquid shell to the right connecting channel, and the opening direction of the one-way return valve is from the bottom of the upper partition to the air storage chamber.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The present invention opens the control valve to allow the liquid phase change liquid inside the cross tube to enter the outside of the heat-conducting shell. The temperature of the liquid phase change liquid will rise while absorbing heat, thereby volatilizing into a gaseous state, taking away heat in the process. When the liquid phase change liquid decreases, the control valve is opened, and the liquid pump works to replenish the liquid phase change liquid in the storage chamber between the two partitions, thereby continuously dissipating the heat of the battery pack, thereby solving the problem that when the temperature is high during the day, the heat generated by the battery charging cannot be dissipated, resulting in reduced charging efficiency and shortened service life.

[0014] 2. The present invention works by means of a liquid pump, and the liquid phase change liquid in the liquid storage chamber is pumped into the interior of the liquid shell through the cross tube and the left connecting channel, but the liquid level does not exceed the top of the fixed plate. Heat is generated during the power generation process of the solar panel, and is conducted to the liquid phase change liquid inside the liquid shell through the heat conduction plate. The temperature of the liquid phase change liquid rises while absorbing heat, and then evaporates into a gas to take away the heat, continuously dissipating heat to the solar panel, thereby solving the problem that when the temperature is high during the day, the temperature of the solar panel rises accordingly, resulting in a decrease in conversion efficiency and accelerated aging.

[0015] 3. The present invention generates gaseous phase change liquid through daytime heat dissipation and is stored in the gas storage cavity. The gaseous phase change liquid will liquefy and emit a large amount of heat, and transfer the heat to the battery pack through the heat-conducting shell and the sealing plate. The liquid phase change liquid accumulates on the upper surface of the lower partition. When a certain amount of liquid is accumulated, the return valve opens, and the liquid phase change liquid will flow back into the liquid storage cavity, thereby keeping the battery pack warm, thereby solving the problem that at night, due to the low temperature of the external environment, the battery discharge efficiency is reduced and the internal energy loss is increased.

[0016] 4. In the process of the present invention changing from night to day, the liquid phase-change liquid in the liquid channel will be converted into a gaseous state due to the increase in temperature, thereby pushing the I-shaped rod to move outward and compressing the spring. The movement of the I-shaped rod will drive the fixed rod and the scraper to follow the movement. The scraper will scrape off the dust and impurities on the surface of the lamp as well as the substances left by insects hitting the lamp. In the process of changing from day to night, the gaseous phase-change liquid in the liquid channel will be converted into a liquid spring due to the decrease in temperature, which will push the I-shaped rod to reset, and the scraper will follow the movement and scrape again, thereby avoiding the problem that impurities on the surface of the lamp will hinder the lighting brightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0018] Figure 2 A half-section schematic diagram of the heat-insulating shell of the present invention;

[0019] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 A half-section schematic diagram of a heat-conducting shell of the present invention;

[0021] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0022] Figure 6 It is a schematic diagram of the liquid shell structure of the present invention.

[0023] In the figure: 1. lamp pole; 2. connector; 3. connecting channel; 4. heat insulation board; 5. liquid shell; 6. heat conduction plate; 7. solar panel; 8. fixing plate; 9. one-way exhaust valve; 10. insulation shell; 11. movable cover; 12. lighting mechanism; 1201. connecting rod; 1202. liquid channel; 1203. I-shaped rod; 1204. spring; 1205. lamp shell; 1206. lighting lamp; 1207. fixing rod; 1208. scraper; 13. partition; 14. heat conduction shell; 15. battery pack; 16. sealing plate; 17. liquid return valve; 18. air intake valve; 19. one-way air return valve; 20. connecting plate; 21. temperature sensor; 22. circuit board; 23. liquid pump; 24. cross pipe; 25. control valve; 26. L pipe. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 6As shown, an embodiment of the present invention provides a solar street light, including a lamp pole 1, a connector 2 is fixedly installed on the top of the lamp pole 1, two connecting channels 3 are opened inside the connector 2, a heat insulation board 4 is fixedly connected to the upper surface of the connector 2, a liquid shell 5 is fixedly connected to the upper surface of the heat insulation board 4, a heat conduction board 6 is fixedly connected to the middle of the liquid shell 5, a solar panel 7 is fixedly connected to the upper surface of the heat conduction board 6, a fixing plate 8 is fixedly installed on the right side of the heat insulation board 4, a one-way exhaust valve 9 is fixedly connected inside the fixing plate 8, a heat insulation shell 10 is fixedly connected to the curved surface of the lamp pole 1, a movable cover plate 11 is movably installed on the front of the heat insulation shell 10, lighting mechanisms 12 are fixedly installed on both sides of the heat insulation shell 10, two partitions 13 are fixedly connected inside the heat insulation shell 10, two heat conduction shells 14 are fixedly connected to the upper surface of the lower partition 13, and a battery pack 15 is fixedly installed inside the heat conduction shell 14. A sealing plate 16 is fixedly installed on the front of the heat-conducting shell 14, a connecting plate 20 is fixedly connected between the two partitions 13, a temperature sensor 21 is fixedly installed on the side of the connecting plate 20 close to the heat-conducting shell 14, and a circuit board 22 is fixedly installed between the two connecting plates 20. Its function is to allow the gaseous phase change liquid generated by heat dissipation during the day and stored in the gas storage cavity to enter between the two partitions 13, and the gaseous phase change liquid will liquefy and emit a large amount of heat, and transfer the heat to the battery pack 15 through the heat-conducting shell 14 and the sealing plate 16, while the liquid phase change liquid accumulates on the upper surface of the lower partition 13. When a certain amount of liquid is accumulated, the return valve 17 is opened, and the liquid phase change liquid will flow back to the inside of the liquid storage cavity, thereby keeping the battery pack 15 warm, thereby solving the problem that at night, due to the low temperature of the external environment, the battery discharge efficiency is reduced and the internal energy loss is increased.

[0026] Among them, two return liquid valves 17 are fixedly installed at the bottom of the lower partition 13, two air intake valves 18 and two one-way return air valves 19 are fixedly installed inside the upper partition 13, a liquid pump 23 is fixedly installed at the bottom of the lamp pole 1, the liquid outlet of the liquid pump 23 is connected to a cross pipe 24, a control valve 25 is fixedly installed in the middle of the cross pipe 24, and the lower end of the connector 2 is connected to an L tube 26, whose function is that the present invention opens the control valve 25 to allow the liquid phase change liquid inside the cross pipe 24 to enter the outside of the heat-conducting shell 14. The liquid phase change liquid absorbs heat and the temperature rises, thereby volatilizing into a gaseous state, taking away heat in the process. When the liquid phase change liquid decreases, the control valve 25 is opened, and the liquid pump 23 works to replenish the liquid phase change liquid in the liquid storage chamber between the two partitions 13, thereby continuously dissipating the heat of the battery pack 15, thereby solving the problem that when the temperature is high during the day, the heat generated by the battery charging cannot be dissipated, resulting in reduced charging efficiency and shortened service life.

[0027] The lighting mechanism 12 includes a connecting rod 1201, a liquid channel 1202 is provided inside the connecting rod 1201, an I-shaped rod 1203 is slidably connected to the outer end of the liquid channel 1202, a spring 1204 is fixedly connected to the outer end of the I-shaped rod 1203, a lamp housing 1205 is fixedly connected to the outer end of the spring 1204, a lighting lamp 1206 is fixedly installed on the bottom of the lamp housing 1205, a fixing rod 1207 is fixedly connected to the front and rear of the I-shaped rod 1203, a scraper 1208 is fixedly connected between the two fixing rods 1207, the connecting rod 1201 is fixedly connected to the side of the insulation shell 10, and the scraper 1208 is adapted to the lower surface of the lighting lamp 1206, and its function is to, during the process of transition from night to day, The liquid phase-change liquid in the liquid channel 1202 will be converted into a gaseous state due to the increase in temperature, thereby pushing the I-shaped rod 1203 to move outward and squeeze the spring 1204. The movement of the I-shaped rod 1203 will drive the fixed rod 1207 and the scraper 1208 to follow the movement. The scraper 1208 will scrape off the dust and impurities on the surface of the lighting lamp 1206 as well as the substances left by insects hitting the lighting lamp 1206. In the process of transitioning from day to night, the gaseous phase-change liquid in the liquid channel 1202 will be converted into a liquid state due to the decrease in temperature. The spring 1204 will push the I-shaped rod 1203 to reset, and the scraper 1208 will follow the movement and scrape again, thereby avoiding the problem that impurities on the surface of the lighting lamp 1206 will hinder the lighting brightness.

[0028] Among them, the surface of the insulation board 4 is provided with two rectangular holes, and the two rectangular holes are adapted to the outer ends of the two connecting channels 3, the solar panel 7 is fixedly connected to the liquid shell 5, and the interior of the liquid shell 5 is provided with a plurality of protrusions, the upper partition 13 and the upper part of the insulation shell 10 form an air storage cavity, and the lower partition 13 and the lower part of the insulation shell 10 form a liquid storage cavity, the heat-conducting shell 14 is not in contact with the insulation shell 10, the connecting plate 20, and the upper partition 13, the sealing plate 16 is not in contact with the connecting plate 20 and the upper partition 13, the upper end of the cross tube 24 is connected to the left connecting channel 3, the middle ends of the cross tube 24 are fixedly connected to the connecting plate 20 and are connected to the side of the connecting plate 20 close to the heat-conducting shell 14, the upper end of the L tube 26 is connected to the right connecting channel 3, the lower end of the L tube 26 is connected to the air storage cavity, the liquid inlet of the liquid pump 23 is connected to the liquid storage cavity, and the liquid storage cavity The liquid channel 1202 is filled with an appropriate amount of phase change liquid. The opening direction of the one-way exhaust valve 9 is from the liquid shell 5 to the right connecting channel 3. The opening direction of the one-way return valve 19 is from the bottom of the upper partition 13 to the air storage chamber. Its function is to pump the liquid phase change liquid in the liquid storage chamber into the liquid shell 5 through the cross tube 24 and the left connecting channel 3 through the liquid pump 23, but the liquid level does not exceed the top of the fixed plate 8. The solar panel 7 generates heat during the power generation process, which is conducted to the liquid phase change liquid in the liquid shell 5 through the heat conduction plate 6. The temperature of the liquid phase change liquid will rise while absorbing heat, so that it will evaporate into gas and take away the heat, and continuously dissipate heat to the solar panel 7, thereby solving the problem that when the temperature is high during the day, the temperature of the solar panel 7 rises accordingly, resulting in a decrease in conversion efficiency and accelerated aging.

[0029] Working principle:

[0030] The present invention is installed in areas with large temperature differences between day and night. During the day, the sun shines on the solar panel 7, thereby generating electricity and storing electrical energy in the battery pack 15 below. During the process, the liquid pump 23 works to pump the liquid phase change liquid in the liquid storage chamber into the liquid shell 5 through the cross tube 24 and the left connecting channel 3, but the liquid level does not exceed the top of the fixed plate 8. The temperature is high during the day, and the solar panel 7 generates heat during the power generation process, which cannot be dissipated into the air. The generated heat is conducted to the liquid phase change liquid inside the liquid shell 5 through the heat conduction plate 6 below the solar panel 7. The liquid phase change liquid absorbs the heat. As the amount of liquid increases, the temperature will rise, thus volatilizing into a gaseous state. In the process, heat will be taken away and accumulated on the far right of the liquid shell 5. The pressure inside the liquid shell 5 will increase, thereby opening the one-way exhaust valve 9, and the gaseous phase-change liquid will enter the inside of the right connecting channel 3, and finally be stored in the gas storage cavity through the L tube 26. When the liquid phase-change liquid inside the liquid shell 5 decreases, the liquid pump 23 works to replenish the liquid phase-change liquid in the liquid storage chamber to the inside of the liquid shell 5, thereby continuously dissipating heat for the solar panel 7, thereby keeping the solar panel 7 in a suitable temperature range and maintaining the maximum power generation efficiency;

[0031] The solar panel 7 works to charge the battery pack 15. During the process, the battery pack 15 generates a large amount of heat, which is transferred to the space between the two partitions 13 through the heat-conducting shell 14 and the sealing plate 16. When the temperature sensor 21 detects that the temperature is high, the control valve 25 opens to allow the liquid phase-change liquid inside the cross tube 24 to enter the outside of the heat-conducting shell 14. The temperature of the liquid phase-change liquid increases while absorbing heat, thereby volatilizing into a gaseous state. During the process, the heat is taken away and accumulated on the lower surface of the upper partition 13. In addition, the pressure increases, causing the one-way return air valve 19 to open and enter the gas storage chamber. When the liquid phase-change liquid decreases, the control valve 25 opens, and the liquid pump 23 works to replenish the liquid phase-change liquid in the liquid storage chamber to the space between the two partitions 13, thereby continuously dissipating heat to the battery pack 15 to prevent the temperature of the battery pack 15 from being too high.

[0032] When the battery pack 15 is kept warm at night, the gaseous phase change liquid generated by heat dissipation during the day and stored in the gas storage cavity will enter between the two partitions 13 through the air inlet valve 18, and the gaseous phase change liquid will liquefy and emit a large amount of heat, and transfer the heat to the battery pack 15 through the heat-conducting shell 14 and the sealing plate 16, thereby keeping the battery pack 15 warm, and the liquid phase change liquid accumulates on the upper surface of the lower partition 13. When a certain amount of liquid is accumulated, the liquid return valve 17 is opened, and the liquid phase change liquid will flow back into the liquid storage cavity, thereby improving the discharge efficiency of the battery pack 15 in the low temperature environment at night;

[0033] During the transition from day to night, the liquid phase-change liquid in the liquid channel 1202 will change due to the change in temperature between day and night. During the transition from night to day, the liquid phase-change liquid in the liquid channel 1202 will be converted into a gaseous state due to the increase in temperature, thereby pushing the I-shaped rod 1203 to move outward and squeeze the spring 1204. The movement of the I-shaped rod 1203 will drive the fixed rod 1207 and the scraper 1208 to move with it. The scraper 1208 will scrape off the dust and impurities on the surface of the lighting lamp 1206 and the substances left by insects hitting the lighting lamp 1206; during the transition from day to night, the gaseous phase-change liquid in the liquid channel 1202 will be converted into a liquid state due to the increase in temperature. The spring 1204 will push the I-shaped rod 1203 to reset, and the scraper 1208 will move with it. The scraper 1208 will scrape off the dust and impurities on the surface of the lighting lamp 1206.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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 street light, comprising a light pole (1), characterized in that: The top of the lamp pole (1) is fixedly mounted with a connector (2), the interior of the connector (2) is provided with two connection channels (3), the upper surface of the connector (2) is fixedly connected with a heat insulation board (4), the upper surface of the heat insulation board (4) is fixedly connected with a liquid shell (5), the middle of the liquid shell (5) is fixedly connected with a heat conduction board (6), the upper surface of the heat conduction board (6) is fixedly connected with a solar panel (7), the right side of the heat insulation board (4) is fixedly mounted with a fixing plate (8), the interior of the fixing plate (8) is fixedly connected with a one-way exhaust valve (9), the curved surface of the lamp pole (1) is fixedly connected with a heat conduction board (6), and the inner surface of the fixing plate (8) is fixedly connected with a one-way exhaust valve (9). A heat-insulating shell (10) is connected, a movable cover plate (11) is movably mounted on the front of the heat-insulating shell (10), lighting mechanisms (12) are fixedly mounted on both sides of the heat-insulating shell (10), two partitions (13) are fixedly connected inside the heat-insulating shell (10), two heat-conducting shells (14) are fixedly connected to the upper surface of the partitions (13) below, a battery pack (15) is fixedly mounted inside the heat-conducting shell (14), a sealing plate (16) is fixedly mounted on the front of the heat-conducting shell (14), a connecting plate (20) is fixedly connected between the two partitions (13), and the connecting plate (20) A temperature sensor (21) is fixedly installed on one side close to the heat-conducting shell (14), a circuit board (22) is fixedly installed between the two connecting plates (20), two liquid return valves (17) are fixedly installed on the bottom of the lower partition (13), two air intake valves (18) and two one-way air return valves (19) are fixedly installed inside the upper partition (13), a liquid pump (23) is fixedly installed on the bottom of the lamp pole (1), the liquid outlet of the liquid pump (23) is connected to a cross pipe (24), a control valve (25) is fixedly installed in the middle of the cross pipe (24), and the connector (2) is fixedly installed at the bottom of the lamp pole (1). The lower end is connected with an L-tube (26); the upper partition (13) and the upper part of the heat-insulating shell (10) form an air storage chamber; the lower partition (13) and the lower part of the heat-insulating shell (10) form a liquid storage chamber; the upper end of the cross tube (24) is connected with the left connecting channel (3); both ends of the middle part of the cross tube (24) are fixedly connected to the connecting plate (20) and are connected with the side of the connecting plate (20) close to the heat-conducting shell (14); the upper end of the L-tube (26) is connected with the right connecting channel (3); the lower end of the L-tube (26) is connected with the air storage chamber; and the liquid inlet of the liquid pump (23) is connected with the liquid storage chamber.

2. A solar street light according to claim 1, characterized in that: The lighting mechanism (12) comprises a connecting rod (1201), a liquid channel (1202) is provided inside the connecting rod (1201), the outer end of the liquid channel (1202) is slidably connected to an I-shaped rod (1203), the outer end of the I-shaped rod (1203) is fixedly connected to a spring (1204), the outer end of the spring (1204) is fixedly connected to a lamp housing (1205), a lighting lamp (1206) is fixedly mounted on the bottom of the lamp housing (1205), the front and rear of the I-shaped rod (1203) are fixedly connected to fixing rods (1207), a scraper (1208) is fixedly connected between the two fixing rods (1207), the connecting rod (1201) is fixedly connected to the side of the heat-insulating shell (10), and the scraper (1208) is adapted to fit the lower surface of the lighting lamp (1206).

3. A solar street light according to claim 2, characterized in that: The surface of the heat insulation board (4) is provided with two rectangular holes, the two rectangular holes are adapted to the outer ends of the two connecting channels (3), the solar panel (7) is fixedly connected to the liquid shell (5), and a plurality of protrusions are provided inside the liquid shell (5).

4. A solar street light according to claim 3, characterized in that: The heat-conducting shell (14) is not in contact with the heat-insulating shell (10), the connecting plate (20), or the upper partition (13); and the sealing plate (16) is not in contact with the connecting plate (20) or the upper partition (13).

5. A solar street light according to claim 4, characterized in that: The liquid storage chamber is filled with an appropriate amount of phase-change liquid, the liquid channel (1202) is filled with an appropriate amount of phase-change liquid, the one-way exhaust valve (9) opens in a direction from the liquid shell (5) to the right connecting channel (3), and the one-way return valve (19) opens in a direction from the upper partition (13) to the gas storage chamber.

Images