Waterproof heat dissipation type outdoor power supply

Abstract

The application discloses a waterproof and heat-dissipation outdoor power supply, which adopts the mode that a battery pack and a circuit board are arranged in a second mounting cavity, heat is dissipated to a first mounting cavity through internal circulation and in cooperation with a main heat-dissipation piece, and then the heat in the first mounting cavity is diffused to the outside of a shell through a ventilation opening and an external circulation fan, so that the waterproof performance and efficient heat dissipation are both met.

Description

Technical Field

[0001] This invention belongs to the field of outdoor power supplies, specifically relating to a waterproof and heat-dissipating outdoor power supply. Background Technology

[0002] Outdoor power supplies are commonly used for outings and camping trips. They feature large capacities to provide power in the wild. The core component of an outdoor power supply is the battery pack, which stores energy. To store sufficient energy, outdoor power supply battery packs are typically large. As user demands increase, the capacity and weight of battery packs are also growing, and heat dissipation has gradually become a significant factor affecting the quality of outdoor power supplies.

[0003] Existing outdoor power supplies typically include a casing and a power supply unit. The casing contains a mounting cavity. The power supply unit usually includes a battery pack, circuit board, buttons, and sockets. Buttons and sockets are usually located on the outer surface of the casing for operation outdoors, while the battery pack and circuit board are housed within the mounting cavity for waterproof protection. Furthermore, the battery pack and circuit board generate heat during operation, causing the temperature inside the mounting cavity to rise. To prevent excessively high temperatures from affecting the battery pack and circuit board, openings are usually made in the side walls of the casing, and a cooling fan is installed inside the mounting cavity. This allows for airflow convection between the inside of the mounting cavity and the outside environment, achieving heat dissipation. For a specific structure, refer to Chinese Patent No. CN202220831917.6, which discloses an outdoor power supply with good heat dissipation.

[0004] However, existing outdoor power supplies have openings in their side walls to ensure effective heat dissipation, which allows air to circulate between the inside and outside of the casing. Therefore, when used in humid environments (such as rainy weather or basements), the high humidity air circulates into the mounting cavity, causing the high humidity air to come into direct contact with the battery pack and circuit board. Although this will not cause a direct short circuit in the battery pack and circuit board, the high humidity air will accelerate the oxidation and corrosion of the battery pack and circuit board, thus affecting the lifespan of the outdoor power supply. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a waterproof and heat-dissipating outdoor power supply. This power supply dissipates heat to the first mounting cavity by placing the battery pack and circuit board in the second mounting cavity and using internal circulation combined with a main heat sink. The heat in the first mounting cavity is then diffused to the outside of the outer casing through ventilation vents and an external circulation fan, thus achieving both waterproof performance and efficient heat dissipation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: comprising: a housing, wherein the housing has a separated first mounting cavity and a second mounting cavity, the second mounting cavity comprising a first chamber and a second chamber that are interconnected, and the housing has an external vent for connecting the first mounting cavity and the outer side of the housing; a main heat sink, wherein the main heat sink is disposed between the first mounting cavity and the second chamber, and the main heat sink is used to absorb heat in the second chamber and diffuse the heat to the first mounting cavity; an external circulation fan, wherein the external circulation fan is disposed in the first mounting cavity, and the external circulation fan is used to realize airflow between the first mounting cavity and the outer side of the housing through the external vent; a battery pack, wherein the battery pack is disposed in the first chamber; and a circuit board. The first internal circulation fan is located in the second mounting cavity. The first internal circulation fan blows hot air from the first cavity toward the second cavity. The hot air passes over or through the circuit board and enters the second cavity, contacting the main heat sink. This allows the main heat sink to absorb heat from the hot air in the second cavity, cooling it down. The air temperature in the second cavity is lower than that in the first cavity. At this point, the first cavity is under negative pressure. Under this negative pressure, the air in the second cavity passes over or through the circuit board and flows back into the first cavity to lower its temperature. The returning air then contacts the battery pack for heat exchange, further reducing the battery pack temperature. This process is repeated to cool the battery pack through internal airflow.

[0007] The present invention is further configured such that: the circuit board includes a first plate and a second plate, the first plate being located between the second plate and the battery pack; a first internal ventilation opening is provided through the first plate, the first internal circulation fan is disposed on the side of the first plate away from the second plate, and the first internal circulation fan faces the first internal ventilation opening; an internal heat sink and a second internal circulation fan are provided on the side of the second plate away from the first plate, the internal heat sink is in contact with the second plate to absorb heat on the second plate and diffuse the heat into the second mounting cavity, and the second internal circulation fan is used to blow air toward the internal heat sink to accelerate the airflow around the internal heat sink.

[0008] The present invention is further configured such that: the internal heat dissipation component is elongated, and the second internal circulation fan is disposed at one end of the length of the internal heat dissipation component; the internal heat dissipation component includes two side portions and a sealing portion located between the two side portions, and each side portion and the sealing portion are elongated and extend along the length direction of the internal heat dissipation component, and the side of each side portion facing away from the sealing portion contacts the second plate; at least one side portion has a plurality of internal heat dissipation fins protruding from the side facing the other side portion, each internal heat dissipation fin extends along the length direction of the corresponding side portion, and each internal heat dissipation fin is arranged in a direction facing the sealing portion.

[0009] The present invention is further configured such that: a second internal ventilation opening is provided through the second plate; the projection of the first internal ventilation opening along the opposing direction of the first plate and the second plate is offset from the projection of the second internal ventilation opening along the opposing direction of the first plate and the second plate.

[0010] The present invention is further configured such that the battery pack, the first plate, the second plate and the main heat sink are arranged in sequence facing upwards.

[0011] The present invention is further configured such that: the battery pack includes a plurality of battery cells, and an arrangement gap is provided between adjacent battery cells; a flow control baffle is provided in the second mounting cavity, the flow control baffle is located between the battery pack and the first plate, and the flow control baffle is provided with a hot flow opening facing the first internal vent and a cold flow opening facing each arrangement gap; the first internal circulation fan is provided at the hot flow opening.

[0012] The present invention is further configured to include a first housing and a second housing, wherein the flow control baffle is disposed on the second housing, the first housing and the second housing are detachably connected, and the second housing and the main heat sink are detachably connected; the battery pack is disposed in the first chamber, and the battery panel is disposed in the second chamber.

[0013] The present invention is further configured to include an inner shell composed of a first shell, a second shell, and a main heat sink, the inner shell being located within a first mounting cavity; an outer bottom plate is provided on the lower side of the outer shell, an inner bottom plate is provided on the lower side of the inner shell, and a suspended area is provided between the inner bottom plate and the outer bottom plate; a drain outlet is provided on the outer bottom plate, the drain outlet being used to drain accumulated water from the first mounting cavity.

[0014] The present invention is further configured such that: the external ventilation port includes an air inlet and an air outlet, and the air inlet and the air outlet are located on opposite sides of the main heat sink; the external circulation fan includes an air intake fan disposed at the air inlet and an air outlet fan disposed at the air outlet; the main heat sink is provided with a plurality of external heat sinks in the first mounting cavity; each of the external heat sinks is a long strip extending from the air inlet to the air outlet, and each of the external heat sinks is arranged perpendicularly from the air inlet to the air outlet.

[0015] The present invention is further configured such that: the first mounting cavity includes an air inlet channel, a main heat exchange channel and an air outlet channel connected in sequence, the air inlet and the air inlet channel are connected, and the air outlet and the air outlet channel are connected; the air inlet channel is provided with a first constricted section that narrows towards the main heat exchange channel on one side of the main heat exchange channel, and the air outlet channel is provided with a second constricted section that narrows towards the main heat exchange channel on one side of the main heat exchange channel.

[0016] By adopting the above technical solution, 1. During the operation of the outdoor power supply, the battery pack provides power and is controlled by the circuit board. Both the battery pack and the circuit board generate heat during operation, with the battery pack generating more heat than the circuit board. This heat generation in the battery pack and circuit board also raises the temperature of the second mounting cavity. 2. Placing the circuit board and battery pack in a second mounting cavity separated from the first mounting cavity ensures that even when the outdoor battery is used in a humid environment, high-humidity air can only enter the first mounting cavity through the external vents and cannot enter the second mounting cavity. This results in lower humidity in the second mounting cavity, preventing oxidation and corrosion of components due to excessively humid air contacting the battery pack and circuit board, achieving efficient sealing and waterproofing to ensure the lifespan of the outdoor power supply. 3. In the battery pack and... With optimized circuit board waterproofing, a first internal circulation fan is installed in the second mounting cavity. Under the action of the first internal circulation fan, the air (highest temperature) on the battery pack side can be blown towards the circuit board to cool the battery pack. During the blowing process, the heat on the circuit board can be more quickly diffused into the air to cool the circuit board. The heat in the second mounting cavity is absorbed by the main heat sink through contact with the main heat sink and diffused into the lower temperature first mounting cavity. The heat dissipation of the second mounting cavity is achieved by internal circulation and heat conduction. 3. The temperature of the first mounting cavity rises with the heat dissipation of the main heat sink. An external circulation fan is used in conjunction with an external connection port to circulate the air between the first mounting cavity and the outside of the outer shell, so that the heat in the first mounting cavity can be quickly dissipated outward with the air, ensuring the safe use of the outdoor power supply. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an assembly diagram of Embodiment 1 of the present invention;

[0019] Figure 2 This is an assembly diagram of Embodiment 1 of the present invention;

[0020] Figure 3 This is an exploded view of Embodiment 1 of the present invention;

[0021] Figure 4 This is a cross-sectional view of Embodiment 1 of the present invention;

[0022] Figure 5 This is a cross-sectional view of Embodiment 1 of the present invention;

[0023] Figure 6 This is an assembly diagram of the inner shell in Embodiment 1 of the present invention;

[0024] Figure 7 This is an assembly diagram of the battery pack in Embodiment 1 of the present invention;

[0025] Figure 8 This is an assembly diagram of the circuit board in Embodiment 1 of the present invention;

[0026] Figure 9 This is an assembly diagram of the circuit board in Embodiment 1 of the present invention;

[0027] Figure 10 This is a part drawing of the second housing in Embodiment 1 of the present invention;

[0028] Figure 11 This is an assembly diagram of the internal heat sink and the second internal circulation fan in Embodiment 1 of the present invention;

[0029] Figure 12 for Figure 4 Enlarged view of A in the middle;

[0030] Figure 13 for Figure 5 A magnified view of B in the middle.

[0031] Label: 1. Outer shell;

[0032] 11. Left shell plate; 12. Right shell plate; 13. Front cover; 14. Right cover; 15. Top cover; 16. First mounting cavity; 17. Second mounting cavity; 18. External vent; 19. Outer bottom plate;

[0033] 161. Air inlet channel; 162. Main heat exchange channel; 163. Air outlet channel; 164. First constriction section; 165. Second constriction section; 171. First chamber; 172. Second chamber; 181. Air inlet; 182. Air outlet;

[0034] 2. Inner shell;

[0035] 21. First housing; 22. Second housing; 23. Main heat sink; 24. Flow control baffle; 25. Inner bottom plate;

[0036] 231. External heat sink; 241. Hot air inlet; 242. Cold air inlet;

[0037] 3. External circulation fan;

[0038] 31. Intake fan; 32. Exhaust fan;

[0039] 4. Battery pack;

[0040] 41. Battery cell; 42. Layout spacing;

[0041] 5. Circuit board;

[0042] 51. First plate; 52. Second plate;

[0043] 511. First internal ventilation opening; 521. Second internal ventilation opening;

[0044] 61. Internal heat dissipation component; 62. First internal circulation fan; 63. Second internal circulation fan;

[0045] 611. Side section; 612. Sealing section; 613. Internal heat sink;

[0046] 71. Suspended area; 72. Drainage outlet. Detailed Implementation

[0047] To enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection of the present invention, the present invention will be described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present invention, and are merely a part of the embodiments of the present invention. The specific and direct descriptions of related structures are only for the convenience of understanding the present invention, and the specific features do not necessarily or directly limit the scope of the present invention. Conventional choices and substitutions made by those skilled in the art under the guidance of the present invention should be considered within the scope of protection of the present invention.

[0048] Example 1:

[0049] like Figures 1-13 As shown, this invention discloses a waterproof and heat-dissipating outdoor power supply, comprising:

[0050] The outer shell 1 includes a left shell plate 11, a right shell plate 12, a front cover 13, a right cover 14, and an upper cover 15. These five parts are assembled by splicing and then fixed with bolts to form the outer shell 1. The outer shell 1 formed by these parts has a first mounting cavity 16 and a second mounting cavity 17 that are separated. The second mounting cavity 17 includes a first chamber 171 and a second chamber 172 that are interconnected. External ventilation openings 18 are respectively provided on the left shell plate 11 and the right shell plate 12, so that the first mounting cavity 16 and the outside of the outer shell 1 are connected through the external ventilation openings 18.

[0051] The main heat sink 23 is made of aluminum and has high heat dissipation performance. The main heat sink 23 is disposed between the first mounting cavity 16 and the second chamber 172, so that heat exchange can be realized between the separated first mounting cavity 16 and the second mounting cavity 172 under the action of the main heat sink 23.

[0052] An external circulation fan 3 is disposed in the first mounting cavity 16. The external circulation fan 3 drives the air in the first mounting cavity 16 by blowing air and realizes the air flow between the first mounting cavity 16 and the outside of the outer shell 1 through the external ventilation port 18.

[0053] Battery pack 4, wherein the battery pack 4 is disposed within the first chamber 171;

[0054] Circuit board 5 is disposed in the second chamber 172 and is located between the battery pack 4 and the main heat sink 23;

[0055] The first internal circulation fan 62 is disposed inside the second mounting cavity 17;

[0056] The first internal circulation fan 62 operates, blowing the hot air in the first chamber 171 toward the second chamber 172. The hot air passes over or through the circuit board 5 and enters the second chamber 172, coming into contact with the main heat sink 23. This allows the hot air in the second chamber 172 to absorb heat and cool down, making the air temperature in the second chamber 172 lower than the hot air in the first chamber 171. At this time, the first chamber 171 is under negative pressure, causing the air in the second chamber 172 to pass over or through the circuit board 5 and flow back into the first chamber 171 under the influence of the negative pressure in the first chamber 171, thereby reducing the temperature in the first chamber 171. The returned air then comes into contact with the battery pack 4 for heat exchange, reducing the temperature of the battery pack 4. Finally, this process is repeated to cool the battery pack 4 through internal air circulation.

[0057] Therefore, 1. During the operation of the outdoor power supply, the battery pack 4 provides power and is controlled by the circuit board 5. Both the battery pack 4 and the circuit board 5 generate heat during operation, with the battery pack 4 generating more heat than the circuit board 5. This causes the battery pack 4 and circuit board 5 to heat up, simultaneously raising the temperature of the second mounting cavity 17. 2. Placing the circuit board 5 and battery pack 4 in the second mounting cavity 17, separated from the first mounting cavity 16, ensures that even when the outdoor battery is used in a humid environment, high-humidity air can only enter the first mounting cavity 16 through the external vent 18, and cannot enter the second mounting cavity 17. This results in lower air humidity within the second mounting cavity 17, preventing oxidation and corrosion of components due to excessively humid air contacting the battery pack 4 and circuit board 5. This achieves efficient sealing and waterproofing, ensuring the lifespan of the outdoor power supply. 3. Regarding the waterproofing of the battery pack 4 and circuit board 5... In optimized cases, a first internal circulation fan 62 is installed in the second mounting cavity 17. Under the action of the first internal circulation fan 62, the air (with the highest temperature) on the side of the battery pack 4 can be blown towards the circuit board 5 to cool down the battery pack 4. During the blowing process, the heat on the circuit board 5 can be diffused into the air more quickly to cool down the circuit board 5. The heat in the second mounting cavity 17 is absorbed by the main heat sink 23 through contact with it and diffused into the first mounting cavity 16, which has a lower temperature. The heat dissipation of the second mounting cavity 17 is achieved by using internal circulation and heat conduction. 4. The temperature of the first mounting cavity 16 increases with the heat dissipation of the main heat sink 23. An external circulation fan 3 is used in conjunction with an external connection port to circulate the air between the first mounting cavity 16 and the outside of the outer casing 1, so as to quickly dissipate the heat in the first mounting cavity 16 to the outside with the air and ensure the safe use of the outdoor power supply.

[0058] Specifically, the circuit board 5 in this embodiment includes a first board body 51 and a second board body 52. ​​The first board body 51 is located between the second board body 52 and the battery pack 4, so that the circuit board 5 is divided into two boards to make the area of ​​a single board body smaller, and the stacked arrangement makes the circuit board 5 occupy less space, thereby optimizing the volume of the outdoor power supply.

[0059] The first plate 51 has a first internal ventilation opening 511 through it, and the first internal circulation fan 62 is disposed on the side of the first plate 51 away from the second plate 52, and the first internal circulation fan 62 faces the first internal ventilation opening 511.

[0060] Therefore, the first internal circulation fan 62 blows air towards the first internal ventilation port 511 so that the blown air passes over the first plate 51 and blows towards the second plate 52. Under the obstruction of the second plate 52, the air diffuses between the first plate 51 and the second plate 52. The diffused air can more comprehensively cover the first plate 51 and the second plate 52, making the heat dissipation of the circuit board 5 more uniform.

[0061] In addition, in this embodiment, the second plate 52 is provided with an internal heat sink 61 and a second internal circulation fan 63 on the side opposite to the first plate 51. The internal heat sink 61 contacts the second plate 52 to absorb the heat on the second plate 52 and diffuse the heat into the second mounting cavity 17. The second internal circulation fan 63 is used to blow air toward the internal heat sink 61 to accelerate the airflow around the internal heat sink 61.

[0062] Therefore, for the second plate 52 whose temperature rises due to the air blown by the first internal circulation fan 62, the heat on the side of the second plate 52 away from the first plate 51 (towards the main heat sink 23) is absorbed and diffused more quickly by the internal heat sink 61 into the air on the side of the second plate 52 away from the first plate 51. At the same time, the second internal circulation fan 63 is set on this side to make the air flow rate faster, so that the side of the second plate 52 facing the main heat sink 23 dissipates heat more quickly and the main heat sink 23 exchanges heat between the first mounting cavity 16 and the second mounting cavity 17 more quickly.

[0063] Preferably, in this embodiment, the internal heat sink 61 is elongated, and the second internal circulation fan 63 is disposed at one end of the length of the internal heat sink 61. Specifically, the internal heat sink 61 includes two side portions 611 and a sealing portion 612 located between the two side portions 611, such that the three are integrally formed to form an elongated U-shaped internal heat sink 61. Each side portion 611 and the sealing portion 612 are elongated and extend along the length direction of the internal heat sink 61, and the side of each side portion 611 facing away from the sealing portion 612 contacts the second plate 52. In addition, each side portion 611 has a plurality of internal heat sink fins 613 protruding from the side facing the other side portion 611. Each internal heat sink fin 613 extends along the length direction of the corresponding side portion 611, and the internal heat sink fins 613 are arranged in the direction facing the sealing portion 612.

[0064] Therefore, the internal heat sink 61 directly absorbs the heat from the second plate 52 by contacting the side 611, and the absorbed heat is more efficiently diffused into the air through multiple internal heat sinks 613. Since the internal heat sinks 613 are located in the space formed by the combination of the side 611, the cover 612, and the second plate 52, the heat is concentrated, and the second internal circulation fan 63 can act on this space to make the heat in the space more efficiently diffused out.

[0065] In other embodiments, the internal heat sink 613 is provided only on one of the side portions 611.

[0066] The second internal circulation fan 63 can blow out or draw out the heat from the internal heat sink 61.

[0067] Furthermore, in this embodiment, a second internal ventilation opening 521 is provided through the second plate 52; the projection of the first internal ventilation opening 511 along the direction of the first plate 51 and the second plate 52 is offset from the projection of the second internal ventilation opening 521 along the direction of the first plate 51 and the second plate 52.

[0068] Due to the limitations of the circuit layout on the circuit board 5, it is basically impossible to align the first inner ventilation port 511 and the second inner ventilation port 521. However, the misaligned second inner ventilation port 521 can still carry heat to the top of the second plate 52 by the air moving between the first plate 51 and the second plate 52, which accelerates the movement of heat toward the main heat sink 23 to improve heat dissipation efficiency and reduces the amount of heat that the second plate 52 needs to absorb to prevent the second plate 52 from overheating.

[0069] Preferably, in this embodiment, the battery pack 4, the first plate 51, the second plate 52 and the main heat sink 23 are arranged in an upward direction to optimize the heat dissipation effect by utilizing the principle of hot air rising and cold air falling.

[0070] Specifically, in this embodiment, the battery pack 4 includes a plurality of battery cells 41, and an arrangement gap 42 is provided between adjacent battery cells 41; a flow control baffle 24 is provided in the second mounting cavity 17, the flow control baffle 24 is located between the battery pack 4 and the first plate 51, and the flow control baffle 24 is provided with a hot flow opening 241 facing the first internal ventilation port 511 and a cold flow opening 242 facing each arrangement gap 42; the first internal circulation fan 62 is provided at the hot flow opening 241.

[0071] Therefore, under the action of the first internal circulation fan 62, the air on the side of the battery pack 4 is guided through the heat flow opening 241 and the first internal ventilation opening 511 to the space between the first plate 51 and the second plate 52. After heat exchange, the air above the first plate 51 can pass through the outer periphery of the first plate 51 (or through the opening on the first plate 51) under the action of pressure difference, and enter the arrangement gaps 42 through the cold flow opening 242, so as to more accurately and comprehensively cool the installation gaps to achieve comprehensive cooling of the battery pack 4.

[0072] More specifically, this embodiment also includes a first housing 21 and a second housing 22, and the first housing 21, the second housing 22, and the main heat sink 23 are arranged sequentially in a wet configuration. The flow control baffle 24 is integrally formed on the second housing 22. The first housing 21 and the second housing 22 are joined vertically and sealed with a sealing ring, and are detachably fixed with bolts. Similarly, the second housing 22 and the main heat sink 23 are joined vertically and sealed with a sealing ring, and are detachably fixed with bolts. Thus, the combination of the three components divides the second mounting cavity 17 into two parts located in the first housing 21 and the second housing 22. The battery pack 4 is disposed in the first chamber 171 between the bodies 22 and the second chamber 172 between the second housing 22 and the main heat sink 23. The battery pack 4 is disposed in the first chamber 171 and the battery board is disposed in the second chamber 172. Therefore, the battery pack 4 is independently placed in the first chamber 171 and the circuit board 5 is independently placed in the second chamber 172, thus achieving mutual isolation between the two. When vibration occurs, the mutual interference between the two is smaller. Moreover, the maintenance of the battery pack 4 only requires disassembling the first housing 21 and the second housing 22, and the maintenance of the circuit board 5 only requires disassembling the second housing 22 and the main heat sink 23, which provides better independence.

[0073] In addition, this embodiment also includes an inner shell 2 composed of a first shell 21, a second shell 22, and a main heat sink 23, the inner shell 2 being located within the first mounting cavity 16; an outer bottom plate 19 is provided on the lower side of the outer shell 1, and an inner bottom plate 25 is provided on the lower side of the inner shell 2, with a suspended area 71 between the inner bottom plate 25 and the outer bottom plate 19; a drain outlet 72 is provided on the outer bottom plate 19, the drain outlet 72 being used to drain the water accumulated in the first mounting cavity 16, so that the inner shell 2 (second mounting cavity 17) is suspended and installed in the first mounting cavity 16, so that the water entering the first mounting cavity 16 is condensed and collected on the outer bottom plate 19 under the action of gravity, and then discharged through the drain outlet 72, and the suspended area 71 is used to isolate the inner shell 2 from the collected water, preventing water from seeping into the inner shell 2 and causing damage to the circuit board 5 and the battery.

[0074] Specifically, positioning points can be set on the left, right, front and back sides of the outer shell 1, and the inner shell 2 can be suspended and installed using methods such as support, buckle, and bolt. Alternatively, protruding columns can be set between the outer bottom plate 19 and the inner bottom plate 25 for support, and fixed using methods such as buckle and bolt.

[0075] Furthermore, in this embodiment, the external ventilation opening 18 includes an air inlet 181 and an air outlet 182, with the air inlet 181 located on the left shell plate 11 and the air outlet 182 located on the right shell plate 12. The external circulation fan 3 includes an intake fan 31 located at the air inlet 181 and an exhaust fan 32 located at the air outlet 182. Specifically, the intake fan 31 and the exhaust fan 32 are mounted on the main heat sink 23 and fixed with bolts. In addition, the main heat sink 23 has several external ventilation openings protruding upwards within the first mounting cavity 16. The heat sink 231, each of the external heat sinks 231 is a long strip extending from left to right, and each external heat sink 231 is arranged in the front-to-back direction, so that under the action of the intake fan 31, the air outside the outer shell 1 is drawn in through the air inlet 181, and the drawn-in air flows towards the air outlet 182 under the action of air pressure. During the flow, the heat around the external heat sink 231 will be carried away to achieve the purpose of heat dissipation. Finally, under the action of the exhaust fan 32, the air is discharged from the first mounting cavity 16 through the air outlet 182 to complete the heat dissipation of the first mounting cavity 16.

[0076] Preferably, in this embodiment, the first mounting cavity 16 includes an air inlet channel 161, a main heat exchange channel 162, and an air outlet channel 163 connected in sequence. The air inlet 181 is connected to the air inlet channel 161, and the air outlet 182 is connected to the air outlet channel 163. The air inlet channel 161 is provided with a first constricted section 164 on one side of the main heat exchange channel 162, which narrows towards the main heat exchange channel 162. The air outlet channel 163 is provided with a second constricted section 165 on one side of the main heat exchange channel 162, which narrows towards the main heat exchange channel 162. The first constricted section 164 allows the air driven by the air inlet fan 31 to enter the main heat exchange channel 162 more quickly by narrowing its diameter, thereby better disturbing the air in the main heat exchange channel 162 for more comprehensive heat exchange. The second constricted section 165 allows the air entering the air outlet channel 163 from the main heat exchange channel 162 to enter the air outlet channel 163 more quickly by narrowing its diameter, thereby leaving the first mounting cavity 16 more quickly for heat discharge.

[0077] Example 2:

[0078] A waterproof and heat-dissipating outdoor power supply has the same main structure as Embodiment 1, except that only the first plate 51 is set, and the internal heat sink 61 and the second internal circulation fan 63 are not set.

[0079] Alternatively, only the first plate 51 can be configured, and the internal heat sink 61 and the second internal circulation fan 63 can be configured on the first plate 51.

[0080] Example 3:

[0081] A waterproof and heat-dissipating outdoor power supply has the same main structure as Embodiment 1, except that the battery pack 4, the first plate 51, the second plate 52 and the main heat sink 23 are arranged downwards in sequence.

[0082] Alternatively, the battery pack 4, the first plate 51, the second plate 52, and the main heat sink 23 are arranged horizontally in sequence.

[0083] Alternatively, the battery pack 4, the first plate 51, the second plate 52, and the main heat sink 23 are arranged in a tilted manner in sequence.

[0084] Example 4:

[0085] A waterproof and heat-dissipating outdoor power supply has the same main structure as Embodiment 1. The difference is that the first housing 21 and the second housing 22 are integrally molded as one piece, while the current control baffle 24 is set separately from the second housing 22. The current control baffle 24 is inserted after the battery pack 4 is placed in the second mounting cavity 17, and the assembly is completed after the circuit board 5 and the main heat sink 23 are installed.

[0086] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof and heat-dissipating outdoor power supply, characterized in that, include: The outer shell (1) has a first mounting cavity (16) and a second mounting cavity (17) that are separated. The second mounting cavity (17) includes a first chamber (171) and a second chamber (172) that are interconnected. The outer shell (1) has an external vent (18) for connecting the first mounting cavity (16) and the outside of the outer shell (1). The main heat sink (23) is disposed between the first mounting cavity (16) and the second chamber (172). The main heat sink (23) is used to absorb the heat in the second chamber (172) and diffuse the heat into the first mounting cavity (16). An external circulation fan (3) is provided in the first mounting cavity (16). The external circulation fan (3) is used to realize the air flow between the first mounting cavity (16) and the outer side of the outer casing (1) through the external ventilation port (18). Battery pack (4), wherein the battery pack (4) is disposed in the first chamber (171); Circuit board (5), said circuit board (5) is disposed in the second chamber (172); The first internal circulation fan (62) is disposed in the second mounting cavity (17); The first internal circulation fan (62) works to blow the hot air in the first chamber (171) toward the second chamber (172). The hot air passes over or through the circuit board (5) and enters the second chamber (172) and comes into contact with the main heat sink (23). The hot air in the second chamber (172) is cooled down by the heat absorption of the main heat sink (23). The air temperature in the second chamber (172) is lower than that in the first chamber (171). At this time, the first chamber (171) is under negative pressure. The air in the second chamber (172) passes over or through the circuit board (5) and flows back into the first chamber (171) under the negative pressure of the first chamber (171) to reduce the temperature in the first chamber (171). The returned air then comes into contact with the battery pack (4) to exchange heat and reduce the temperature of the battery pack (4). Finally, the battery pack (4) is cooled by internal circulation airflow in this order. The circuit board (5) includes a first board body (51) and a second board body (52), with the first board body (51) located between the second board body (52) and the battery pack (4); The first plate (51) is provided with a first internal ventilation opening (511), and the first internal circulation fan (62) is provided on the side of the first plate (51) away from the second plate (52), and the first internal circulation fan (62) faces the first internal ventilation opening (511). The second plate (52) is provided with an internal heat sink (61) and a second internal circulation fan (63) on the side opposite to the first plate (51). The internal heat sink (61) contacts the second plate (52) to absorb the heat on the second plate (52) and diffuse the heat into the second mounting cavity (17). The second internal circulation fan (63) blows air towards the internal heat sink (61) to accelerate the airflow around the internal heat sink (61). The internal heat sink (61) is elongated, and the second internal circulation fan (63) is located at one end of the length of the internal heat sink (61). The internal heat dissipation component (61) includes two side portions (611) and a sealing portion (612) located between the two side portions (611). Each side portion (611) and the sealing portion (612) are arranged in an elongated strip shape extending along the length direction of the internal heat dissipation component (61). The side of each side portion (611) facing away from the sealing portion (612) contacts the second plate (52). At least one of the sides (611) has a plurality of internal heat sinks (613) protruding from one side toward the other side (611). Each of the internal heat sinks (613) extends along the length direction of the corresponding side (611) and is arranged in the direction toward the seal (612).

2. The waterproof and heat-dissipating outdoor power supply according to claim 1, characterized in that: A second internal ventilation opening (521) is provided through the second plate (52); The projection of the first internal ventilation opening (511) along the direction of the first plate (51) and the second plate (52) is offset from the projection of the second internal ventilation opening (521) along the direction of the first plate (51) and the second plate (52).

3. The waterproof and heat-dissipating outdoor power supply according to claim 1, characterized in that: The battery pack (4), the first plate (51), the second plate (52) and the main heat sink (23) are arranged in a top-down configuration.

4. The waterproof and heat-dissipating outdoor power supply according to any one of claims 1-3, characterized in that: The battery pack (4) includes a plurality of battery cells (41), and there are arrangement gaps (42) between adjacent battery cells (41). The second mounting cavity (17) is provided with a flow control baffle (24), which is located between the battery pack (4) and the first plate (51). The flow control baffle (24) is provided with a hot flow opening (241) facing the first internal vent (511) and a cold flow opening (242) facing each arrangement gap (42). The first internal circulation fan (62) is located at the heat flow opening (241).

5. The waterproof and heat-dissipating outdoor power supply according to claim 4, characterized in that: It also includes a first housing (21) and a second housing (22), the flow control baffle (24) is disposed on the second housing (22), the first housing (21) and the second housing (22) are detachably connected, and the second housing (22) and the main heat sink (23) are detachably connected; The battery pack (4) is disposed in the first chamber (171), and the circuit board (5) is disposed in the second chamber (172).

6. The waterproof and heat-dissipating outdoor power supply according to claim 5, characterized in that: It also includes an inner shell (2) consisting of a first shell (21), a second shell (22), and a main heat sink (23), the inner shell (2) being located within the first mounting cavity (16); An outer bottom plate (19) is provided on the lower side of the outer shell (1), and an inner bottom plate (25) is provided on the lower side of the inner shell (2). A suspended area (71) is provided between the inner bottom plate (25) and the outer bottom plate (19). The outer bottom plate (19) is provided with a drain outlet (72), which is used to drain the water accumulated in the first mounting cavity (16).

7. The waterproof and heat-dissipating outdoor power supply according to claim 1, characterized in that: The external ventilation opening (18) includes an air inlet (181) and an air outlet (182), and the air inlet (181) and the air outlet (182) are located on opposite sides of the main heat sink (23). The external circulation fan (3) includes an air intake fan (31) located at the air inlet (181) and an air outlet fan (32) located at the air outlet (182). The main heat sink (23) is provided with a plurality of external heat sinks (231) in the first mounting cavity (16). Each external heat sink (231) is a long strip extending from the air inlet (181) to the air outlet (182), and each external heat sink (231) is arranged vertically from the air inlet (181) to the air outlet (182).

8. The waterproof and heat-dissipating outdoor power supply according to claim 7, characterized in that: The first mounting cavity (16) includes an air inlet channel (161), a main heat exchange channel (162) and an air outlet channel (163) connected in sequence. The air inlet (181) is connected to the air inlet channel (161), and the air outlet (182) is connected to the air outlet channel (163). The air inlet channel (161) is provided with a first constricted section (164) that narrows towards the main heat exchange channel (162) on one side of the main heat exchange channel (162), and the air outlet channel (163) is provided with a second constricted section (165) that narrows towards the main heat exchange channel (162) on one side of the main heat exchange channel (162).

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