Solar street lamp battery with heat dissipation structure

Abstract

The utility model discloses a solar street lamp battery with a heat dissipation structure, which comprises a shell, a cover plate is arranged above the shell, and a lithium battery is mounted at the bottom of the inner wall of the shell; circulating pipes are symmetrically arranged on the front side and the back side of the lithium battery in the shell, heat dissipation holes are formed in the left side and the right side of the shell at equal intervals, protection plates are connected to the two sides of the shell, and damping springs are installed between the upper portion and the lower portion of the right side of the inner wall of each protection plate and the inner wall of the shell. According to the solar street lamp battery with the heat dissipation structure, heat generated by a lithium battery is transferred to a protective air bag through a heat conduction rod, so that the protective air bag expands and pushes a protective plate to move, heat in the shell can be discharged from a plurality of heat dissipation holes at the moment, air circulation in the shell is guaranteed, and meanwhile cooling water enters a circulating pipe; and the lithium battery is subjected to water cooling, so that the heat dissipation efficiency of the lithium battery is improved, and the use performance of the lithium battery is prevented from being influenced by excessive temperature.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a solar street light battery with a heat dissipation structure. Background Technology

[0002] Solar streetlights collect solar energy through solar panels and convert it into direct current (DC) electricity. The collected solar energy is then stored in a battery for nighttime use. When night falls or ambient light is insufficient, the solar streetlights automatically activate, converting the stored energy into electricity to power the lights. However, a drawback is that while the casing protects the lithium battery from moisture, when the battery heats up, the heat can only be dissipated externally through a few ventilation channels on the casing's walls. These ventilation channels are not integrated with the casing itself. The internal structure is interconnected, resulting in poor internal heat dissipation. To address these shortcomings, existing technology (Chinese patent application number 202320977342.3, authorized announcement date 2023-11-21) discloses a battery device for a solar street light. When the flame-retardant box is made of aluminum, aluminum not only provides flame retardancy but also allows for rapid heat transfer to the aluminum flame-retardant box should the battery components heat up. The aluminum flame-retardant box has a wide heat dissipation area, and the aluminum box body can provide 360-degree heat dissipation. Aluminum is a good heat dissipation material, enabling rapid heat dissipation and effectively improving heat dissipation efficiency.

[0003] Existing technology uses a flame-retardant aluminum box to transfer heat from the battery module, achieving rapid heat dissipation. However, the heat dissipation effect of the aluminum flame-retardant box alone is poor. As the battery module operates for a long time, a large amount of heat accumulates inside the casing, and the heat cannot be dissipated from the heat source more quickly. This causes the battery module to overheat and affect its performance. Therefore, we propose that a solar street light battery with a heat dissipation structure can effectively solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a solar street light battery with a heat dissipation structure to solve the problem mentioned in the background art that the heat dissipation effect of the aluminum flame-retardant box alone is poor, which causes the battery module to generate a lot of heat and accumulate inside the shell due to long-term operation, and cannot remove the heat from the heat source more quickly, resulting in the battery module's performance being affected by excessive temperature.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solar street light battery with a heat dissipation structure, comprising a housing, a cover plate on the top of the housing, and a lithium battery installed at the bottom of the inner wall of the housing; circulation tubes are symmetrically arranged inside the housing on both sides of the lithium battery; heat dissipation holes are equally spaced on the left and right sides of the housing, and protective plates are connected to both sides of the housing; shock-absorbing springs are installed between the upper and lower sides of the right side of the inner wall of the protective plate and the inner wall of the housing; protective airbags are embedded above and below the heat dissipation holes on both sides of the housing, and heat-conducting rods are fixedly connected at equal intervals on the left and right sides inside the housing; a support plate is fixedly connected to the top of the left protective plate, and a movable contact switch is connected to the left side of the support plate; a fixed contact switch is fixedly installed on the upper left side of the inner wall of the housing.

[0006] Preferably, the outer side of the circulation tube is in contact with the surface of the lithium battery, and the positions of the movable contact switch and the fixed contact switch correspond to each other.

[0007] Preferably, the two ends of the heat-conducting rod are in contact with the surfaces of the protective airbag and the lithium battery, respectively.

[0008] Preferably, the side of the protective plate extends into the interior of the housing, and the protective plate and the housing are slidably connected.

[0009] Preferably, each of the four corners at the bottom of the cover plate is fixed with a locking block, and the front of the locking block is fixedly connected with toothed blocks at equal intervals. The top of the housing is provided with slots at equal intervals around the perimeter, and the upper part of the housing is connected with driven gears at equal intervals. The upper part of the outer side of the housing is connected with rotating rods at equal intervals, and a limiting plate is fixedly fitted on the outer side of the rotating rod. A fixing magnet is fixed between the bottom of one end of the limiting plate and the upper surface of the cover plate.

[0010] Preferably, the card block and the card slot are engaged, the driven gear is rotatably connected inside the housing via a shaft, and the driven gear is meshed with multiple tooth blocks.

[0011] Preferably, the driven gear shaft end and the bottom of the rotating rod are connected by a bevel gear set for transmission, the limiting plate is arranged in an "L" shape, and the magnetic poles of the upper and lower fixed magnets are the same on opposite sides.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the solar street light battery with a heat dissipation structure adopts a novel structural design, the details of which are as follows:

[0013] (1) The two ends of the circulation pipe are connected to the water-cooled box inside the solar street light, so that when the lithium battery works for a long time and generates heat, the heat is transferred to the protective airbag by the heat conduction rod, causing the protective airbag to expand when heated and push the protective plate to move, so that the protective plate no longer blocks the heat dissipation holes. At this time, the heat inside the shell can be discharged from multiple heat dissipation holes and ensure air circulation inside the shell; furthermore, when the protective plate moves, the active contact switch contacts the fixed contact switch, which can activate the solenoid valve on the circulation pipe, so that the cooling water in the water-cooled box enters the circulation pipe to cool the lithium battery, thereby improving the heat dissipation efficiency of the lithium battery and preventing the lithium battery from being affected by excessive temperature.

[0014] (2) When the solar street light is hit, the protective plate can absorb the impact force and the spring force of the shock-absorbing spring can reduce the impact force. At the same time, the protective plate moves and squeezes the protective airbag, effectively buffering the impact force, thereby preventing the lithium battery inside the shell from being damaged and improving safety.

[0015] (3) When the lithium battery needs to be repaired, the fixed magnet on the limit plate is separated from the fixed magnet on the cover plate by rotating the limit plate, thereby releasing the fixation of the cover plate. Then, the cover plate is pulled up to separate the clip from the slot, so that the lithium battery can be quickly removed from the shell for repair. Furthermore, the cover plate is inserted into the slot on the shell by the clip and multiple tooth blocks drive the driven gear to rotate, so that the driven gear drives the rotating rod to rotate by the bevel gear set, thereby causing the limit plate to rotate and reset. The limit plate is then fixed by two fixed magnets, thus completing the installation of the cover plate and the shell. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure between the fixed contact switch and the housing of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the shell and cover plate of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the limiting plate, the locking block, and the driven gear of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the protective plate and protective airbag of this utility model;

[0021] Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 7 This utility model Figure 1 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Shell; 2. Cover plate; 3. Lithium battery; 4. Circulation tube; 5. Protective plate; 6. Protective airbag; 7. Heat-conducting rod; 8. Shock-absorbing spring; 9. Support plate; 10. Fixed magnet; 11. Heat dissipation hole; 12. Movable contact switch; 13. Fixed contact switch; 14. Limit plate; 15. Driven gear; 16. Gear block; 17. Locking block; 18. Locking slot; 19. Rotating rod. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-7 The present invention provides the following technical solution: a solar street light battery with a heat dissipation structure;

[0026] Example 1: To address the problem in the prior art where the heat dissipation effect of the aluminum flame-retardant casing alone is poor, causing a large amount of heat to accumulate inside the casing 1 during prolonged operation of the battery assembly, and the inability to quickly dissipate the heat from the heat source, resulting in the battery assembly's performance being affected by excessively high temperatures, the following solution is disclosed. Please refer to the following for details. Figures 1-3 and Figure 6 As shown, the device includes a housing 1, a cover plate 2 on the top of the housing 1, and a lithium battery 3 installed at the bottom of the inner wall of the housing 1. A circulation tube 4 is symmetrically arranged inside the housing 1 on both sides of the lithium battery 3. Heat dissipation holes 11 are equally spaced on the left and right sides of the housing 1. A support plate 9 is fixedly connected to the top of the left protective plate 5, and a movable contact switch 12 is connected to the left side of the support plate 9. A fixed contact switch 13 is fixed on the upper left side of the inner wall of the housing 1. The outer side of the circulation tube 4 is in contact with the surface of the lithium battery 3. The positions of the movable contact switch 12 and the fixed contact switch 13 correspond to each other.

[0027] The two ends of the circulation pipe 4 are connected to the water-cooling box inside the solar street light. When the lithium battery 3 works for a long time and generates heat, the heat is transferred to the protective airbag 6 by the heat-conducting rod 7. The protective airbag 6 expands due to heat and pushes the protective plate 5 to move. This prevents the protective plate 5 from blocking the heat dissipation hole 11. At this time, the heat inside the shell 1 can be discharged through multiple heat dissipation holes 11, ensuring air circulation inside the shell 1. Then, when the protective plate 5 moves, the movable contact switch 12 contacts the fixed contact switch 13, which can activate the solenoid valve on the circulation pipe 4, allowing the cooling water in the water-cooling box to enter the circulation pipe 4 to cool the lithium battery 3. This improves the heat dissipation efficiency of the lithium battery 3 and prevents the lithium battery 3 from being affected by overheating.

[0028] Example 2: Unlike Example 1, this example utilizes a protective plate 5, a shock-absorbing spring 8, and a protective airbag 6 to prevent damage to the lithium battery 3 inside the casing 1, thus improving safety. See details for further information. Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, protective plates 5 are connected to both sides of the housing 1. Shock-absorbing springs 8 are installed between the upper and lower sides of the right side of the inner wall of the protective plate 5 and the inner wall of the housing 1. Protective airbags 6 are embedded above and below the heat dissipation holes 11 on both sides of the housing 1. Heat-conducting rods 7 are fixedly connected at equal intervals on the left and right sides inside the housing 1. The two ends of the heat-conducting rods 7 are in contact with the surfaces of the protective airbags 6 and the lithium battery 3, respectively. The side of the protective plate 5 extends into the interior of the housing 1, and the protective plate 5 and the housing 1 are slidably connected.

[0029] When a solar street light is impacted, the protective plate 5 absorbs the impact force, and the spring force of the shock-absorbing spring 8 reduces the impact force. At the same time, the protective plate 5 moves and compresses the expanded protective airbag 6, effectively buffering the impact force, thereby preventing damage to the lithium battery 3 inside the casing 1 and improving safety.

[0030] Example 3: Unlike Example 2, this example uses a rotating limiting plate 14 to release the fixation of the cover plate 2 and separate the cover plate 2 from the housing 1, thereby facilitating the removal and maintenance of the lithium battery 3. See details... Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, there are four corners at the bottom of the cover plate 2 with locking blocks 17, and toothed blocks 16 are fixedly connected at equal intervals on the front of the locking blocks 17. The top of the housing 1 has slots 18 at equal intervals around the perimeter, and driven gears 15 are connected at equal intervals on the upper part of the inside of the housing 1. Rotating rods 19 are connected at equal intervals on the upper part of the outer side of the housing 1, and a limiting plate 14 is fixedly fitted on the outer side of the rotating rod 19. A fixing magnet 10 is fixed between the bottom of one end of the limiting plate 14 and the upper surface of the cover plate 2. The locking blocks 17 and the slots 18 are engaged. The driven gears 15 are rotatably connected to the inside of the housing 1 through a shaft, and the driven gears 15 are meshed with multiple toothed blocks 16. The shaft end of the driven gears 15 is connected to the bottom of the rotating rods 19 through a bevel gear set. The limiting plate 14 is L-shaped, and the magnetic poles of the two fixed magnets 10 on opposite sides are the same.

[0031] When the lithium battery 3 needs to be repaired, the fixed magnet 10 on the limiting plate 14 is separated from the fixed magnet 10 on the cover plate 2 by rotating the limiting plate 14, thereby releasing the fixation of the cover plate 2. Then, the cover plate 2 is pulled upward to separate the locking block 17 from the slot 18, so that the lithium battery 3 can be quickly removed from the inside of the housing 1 for repair. Then, the cover plate 2 is locked into the slot 18 on the housing 1 by the locking block 17, and the driven gear 15 is driven to rotate by multiple toothed blocks 16. The driven gear 15 drives the rotating rod 19 to rotate by the bevel gear set, thereby causing the limiting plate 14 to rotate and reset. At this time, the two fixed magnets 10 come into contact and are attracted together by the principle of like poles repulsion, which can fix the limiting plate 14, thereby completing the installation of the cover plate 2 and the housing 1.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solar street lamp battery provided with a heat dissipation structure, comprising a shell (1), the upper part of the shell (1) is provided with a cover plate (2), and the bottom of the inner wall of the shell (1) is provided with a lithium battery (3); characterized in that The inside of the shell (1) is symmetrically provided with a circulation pipe (4) on the front and back of the lithium battery (3), the left and right sides of the shell (1) are provided with heat dissipation holes (11) at equal intervals, and the left and right sides of the shell (1) are both connected with a protective plate (5), the inner wall of the right side of the protective plate (5) is provided with shock absorbing springs (8) between the upper and lower parts and the inner wall of the shell (1). The left and right sides of the shell (1) are embedded with protective airbags (6) above and below the heat dissipation holes (11), the left and right sides of the shell (1) are fixedly connected with heat conducting rods (7), the top of the left protective plate (5) is fixedly connected with a support plate (9), the left side of the support plate (9) is provided with a movable contact switch (12), and the left side of the inner wall of the shell (1) is fixedly connected with a fixed contact switch (13).

2. The solar street light cell provided with a heat dissipation structure according to claim 1, characterized in that: The outer side of the circulation pipe (4) is in contact with the surface of the lithium battery (3), and the positions of the movable contact switch (12) and the fixed contact switch (13) correspond.

3. The solar street light cell provided with a heat dissipation structure according to claim 1, characterized in that: The two ends of the heat conducting rod (7) are in contact with the surface of the protective airbag (6) and the lithium battery (3) respectively.

4. The solar street light cell provided with a heat dissipation structure according to claim 1, characterized in that: The side of the protective plate (5) extends into the inside of the shell (1), and the protective plate (5) and the shell (1) are connected by sliding.

5. The solar street light cell provided with a heat dissipation structure according to claim 1, characterized in that: The bottom of the cover plate (2) is fixedly connected with a clamping block (17), the front of the clamping block (17) is fixedly connected with a tooth block (16), the top of the shell (1) is provided with a clamping groove (18), the inside of the shell (1) is fixedly connected with a driven gear (15), the outer side of the shell (1) is fixedly connected with a rotating rod (19), the outer side of the rotating rod (19) is sleeved with a limiting plate (14), and the bottom of one end of the limiting plate (14) and the upper surface of the cover plate (2) are fixedly connected with a fixed magnet (10).

6. The solar street light cell provided with a heat dissipation structure according to claim 5, characterized in that: The clamping block (17) and the clamping groove (18) are connected by clamping, the driven gear (15) is rotatably connected in the inside of the shell (1) by a shaft, and the driven gear (15) and the tooth blocks (16) are connected by meshing.

7. The solar street light cell provided with a heat dissipation structure according to claim 5, characterized in that: The shaft end of the driven gear (15) and the bottom of the rotating rod (19) are connected by a bevel gear set, and the limiting plate (14) is in the shape of "L", and the magnetic poles of the two fixed magnets (10) are the same.

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