Photovoltaic energy storage inverter with good heat dissipation and heat dissipation method thereof

Abstract

The application discloses a photovoltaic energy storage inverter with good heat dissipation and a heat dissipation method thereof, and relates to the technical field of photovoltaic energy storage, which comprises an inverter shell, both sides of the outer surface of the inverter shell are provided with heat dissipation adjusting devices, and the top of the outer surface of the inverter shell is provided with a heat dissipation device. In the application, the dustproof function is realized while reducing the internal airflow throughput, the speed-adjustable fan arranged at the positions of the side air outlet and the top air outlet can effectively adjust the heat dissipation intensity, the adjustable forced convection heat dissipation can provide heat dissipation for all electronic components in the inverter shell in cooperation with the heat dissipation device, the high-heat-emitting parts at the sticking position on one side of the bottom plate are subjected to main heat dissipation, the heat dissipation effect in the inverter shell is effectively improved, the adjustment on the forced convection heat dissipation is limited by the cooperation of the resisting plate and the fixing sheet on the moving distance of the rack, and then the rotating angle of the adjusting sheet is limited.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic energy storage technology, specifically to a photovoltaic energy storage inverter with good heat dissipation and its heat dissipation method. Background Technology

[0002] A photovoltaic energy storage inverter consists of one or more photovoltaic panels, an MPPT controller, and an inverter. The inverter and controller are connected to external load devices and series-connected batteries. The batteries store electrical energy or directly supply power to the load devices. The photovoltaic inverter (PV inverter or solar inverter) can convert the variable DC voltage generated by the photovoltaic (PV) solar panel into AC power at the mains frequency. This AC power can be fed back to the commercial power transmission system or supplied to the off-grid grid.

[0003] However, in existing technologies, during long-term use of inverters, it is necessary to reduce the temperature of internal high-temperature electronic components to avoid damage. For example, Chinese patent CN114243174A discloses a photovoltaic power supply box with good heat dissipation performance and its heat dissipation method, which relates to the field of photovoltaic power supply box technology. This invention addresses the problem that existing photovoltaic power supply boxes generally have poor heat dissipation performance, typically only able to exchange heat with the outside environment via convection, resulting in slow overall heat dissipation efficiency and incomplete heat dissipation. The outer wall of the upper surface of the photovoltaic power supply box body is provided with an upper heat dissipation vent, inside which a heat dissipation plate is installed. Several copper heat dissipation pipes are installed on the outer walls of both the upper and lower ends of the heat dissipation plate. An inlet / outlet groove is provided on the outer wall of the front face of the photovoltaic power supply box body, inside which a battery mechanism is installed. A bottom heat dissipation layer is provided at the bottom of the photovoltaic power supply box body. Side heat dissipation vents are provided on the outer walls of both sides of the photovoltaic power supply box body. A drive motor is installed on one side of the heat dissipation plate.

[0004] While the above solutions have the advantages mentioned above, their disadvantages are as follows: they cannot specifically adjust the internal heat generated by the electronic components inside the inverter under different operating loads. The fixed heat dissipation power is too power-consuming for internal heat under small operating loads, while it cannot dissipate the internal heat in a timely manner under large operating loads. Summary of the Invention

[0005] The purpose of this invention is to solve the problem in the prior art that the internal heat generated by the electronic components inside the inverter under different operating loads cannot be adjusted in a targeted manner.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic energy storage inverter with good heat dissipation, comprising an inverter housing, heat dissipation adjustment devices provided on both sides of the outer surface of the inverter housing, a heat dissipation device provided on the top of the outer surface of the inverter housing, a fixing plate fixedly installed inside the inverter housing, multiple heat dissipation fins fixedly embedded inside the fixing plate, a top side plate fixedly installed on one side of the outer surface of the inverter housing, a bottom side plate fixedly installed on one side of the outer surface of the inverter housing, a side vent opened on one side of the outer surface of the inverter housing, a top vent opened on the top of the outer surface of the inverter housing, the heat dissipation adjustment device comprising a side frame, a rack, a rotating shaft, and an adjusting plate, heat-conducting copper pipes fixedly connected to both sides of the outer surface of the multiple heat dissipation fins, one side of the heat-conducting copper pipe being fixedly embedded inside the inverter housing, and the outer surfaces of the multiple heat-conducting copper pipes being fixedly connected to both sides of the outer surface of the heat dissipation fins, one side of the heat-conducting copper pipe being fixedly embedded inside the inverter housing, and the outer surfaces of the multiple heat-conducting copper pipes being fixedly connected to both sides of the outer surface of the heat dissipation fins. A heat-conducting plate is fixedly fitted, with a base plate fixedly connected to the bottom of the outer surface of one side of the heat-conducting plate, and a heat dissipation device fixedly connected to the top of the outer surface of the other side of the heat-conducting plate. The heat dissipation device includes a heat dissipation chamber and a liquid delivery pipe. The liquid delivery pipe is fixedly embedded inside the heat dissipation chamber. A heat dissipation platform is fixedly connected to one end of the outer surface of the liquid delivery pipe, and a condenser pipe is fixedly connected to the other end of the heat dissipation platform. A liquid delivery pump is fixedly connected to one end of the outer surface of the condenser pipe. The heat dissipation platform and the liquid delivery pump are both fixedly installed on the top of the outer surface of the inverter housing. The other end of the outer surface of the liquid delivery pipe is fixedly installed on the outer surface of the liquid delivery pump. Slots are provided on both sides of the inner wall of the top side plate. Connecting plates are movably embedded in the slots. Multiple first springs are fixedly connected to one side of the outer surface of the connecting plates. Multiple first springs are fixedly installed on one side of the inner wall of the top side plate.

[0007] In a preferred embodiment, connecting seats are fixedly installed at both ends of the outer surface of the connecting plate, and side doors are movably connected to the opposite sides of the plurality of connecting seats. A groove is provided on one side of the outer surface of the side door.

[0008] The technical effect of adopting the above-mentioned further solution is that the cooperation of the connecting plate, connecting seat, side door and pull groove facilitates the opening of the side door. The side door can be opened simply by lifting the pull groove. When closed, it is supported by the limiting groove at the bottom of the bottom side plate, and it will not open into or out of the inverter housing.

[0009] In a preferred embodiment, a limiting groove is provided on one side of the outer surface of the bottom side plate, and multiple side frames are fixedly installed on the outer surface of the inverter housing, with the rack movably embedded inside the side frame.

[0010] The technical effect of adopting the above-mentioned further solution is that the cooperation between the side frame and the rack provides bottom fixation for the subsequent angle adjustment of the adjustment plate.

[0011] In a preferred embodiment, the plurality of rotating shafts are movably mounted on the bottom of the inner wall of the side frame, and the adjusting plates are fixedly sleeved on the outer surface of the rotating shafts.

[0012] The technical effect of adopting the above-mentioned further solution is that the gear rack, rotating shaft and adjusting plate are engaged through teeth, making the angle adjustment more stable and facilitating the adjustment of the adjusting plate angle.

[0013] In a preferred embodiment, a connecting piece is fixedly sleeved on one end of the outer surface of each of the plurality of racks, and a fixing piece is movably connected to one end of the outer surface of each of the plurality of racks.

[0014] The technical effect of adopting the above-mentioned further solution is that the setting of the fixing plate provides a limit for the maximum movement distance at one end of the rack.

[0015] In a preferred embodiment, the fixing plate is fixedly installed inside the inverter housing, and multiple second springs are fixedly installed on one side of the outer surface of the multiple fixing plates. The second springs are fixedly connected to the connecting plate, and the other end of the outer surface of the multiple racks is fixedly connected to the connecting strip.

[0016] The technical effect of adopting the above-mentioned further solution is that the second spring always provides thrust to the rack, thereby improving the stability of the tooth meshing.

[0017] In a preferred embodiment, a plurality of outer bushings are fixedly embedded inside the inverter housing, each of the plurality of outer bushings is threaded with a lead screw, each of the plurality of lead screws is movably embedded with an inner shaft, and each of the plurality of inner shafts is fixedly mounted with a plurality of limiting strips on its outer surface.

[0018] The technical effect of adopting the above-mentioned further solution is that the setting of the outer bushing, lead screw, inner shaft, and limit bar allows the movement of the connecting bar to be adjusted by externally rotating the inner shaft, thereby changing the angle of multiple adjusting plates.

[0019] In a preferred embodiment, a stop plate is fixedly connected to one end of the outer surface of each of the plurality of connecting strips, and the lead screw is movably connected to the stop plate.

[0020] The technical effect of adopting the above-mentioned further solution is that the setting of the abutment plate and the fixing plate provide a limit for the maximum movement distance of one end of the rack.

[0021] In a preferred embodiment, a groove is provided on one side of the outer surface of each of the plurality of adjustment plates, and a protrusion is fixedly installed on the other side of the outer surface of each of the plurality of adjustment plates, wherein the groove and the protrusion are adapted to each other.

[0022] The technical effect of adopting the above-mentioned further solution is that the groove and the convex strip improve the sealing effect when the ventilation holes on both sides are closed.

[0023] The present invention also provides a method for using an electronic voltage sensor, comprising the following steps:

[0024] Step 1: The bottom plate is connected to the internal components via thermal grease to transfer heat from the internal components. Adjustable speed fans are installed at the side and top air vents. The bottom and sides serve as air inlets, while the top and side air vents serve as air outlets, forming a heat dissipation airflow channel to achieve forced convection cooling. This, combined with the top heat dissipation device, conducts heat away from the heatsink fins after convection cooling. A coolant inlet is located on the outside of the heat sink; coolant is added inside and circulates within the liquid delivery pipes to cool the heat sink. The coolant inside the liquid delivery pipes is circulated by a liquid pump, working in conjunction with the heat sink to dissipate the heated coolant. For heat dissipation, the heat dissipation platform contains heat sinks and a liquid storage tank. The fixed plate has a low thermal conductivity. Unlike existing technologies, the overall airflow inside the inverter housing is improved. Adjustable heat dissipation devices on the bottom and sides serve as air inlets, increasing the heat dissipation area of ​​the heat sink fins. Fans added at the side and top air inlets provide forced convection cooling to the entire internal cavity of the inverter housing, increasing the internal airflow. In addition to providing the main heat dissipation for the high-heat components attached to one side of the bottom plate, it can also provide convection cooling for other components inside the internal cavity of the inverter housing. Together with the heat dissipation device, it effectively improves the heat dissipation and dust prevention effect inside the inverter housing.

[0025] Step 2: To facilitate heat dissipation of electronic components inside the inverter housing at different power levels and prevent dust accumulation inside the inverter housing when not in use, the side ventilation channels are effectively closed by adjusting the heat dissipation adjustment devices on both sides. This reduces the internal airflow while preventing dust. In conjunction with the adjustable speed fans placed at the side and top air vents, the heat dissipation intensity can be effectively adjusted, while reducing dust entering the inner cavity of the inverter housing. The adjustment method involves rotating the inner shaft to drive the lead screw to rotate. The outer bushing is embedded inside the inverter housing. As the lead screw rotates, it gradually moves and abuts against the connecting strip, thereby adjusting the position of the rack inside the side frame. The bottom of the rotating shaft is equipped with a gear that meshes with the rack. As the rack moves, it drives the rotation of multiple rotating shafts, thereby adjusting the angle of the adjustment plates on both sides.

[0026] Step 3: One end of the rack is equipped with a fixing plate, a second spring, and a connecting plate. The fixing plate and the outer bushing are also embedded inside the inverter housing. The cooperation between the abutment plate and the fixing plate limits the distance the rack can move back and forth, and then limits the rotation angle of the adjusting plate. The limiting method is as follows: when the abutment plate moves and is stuck at one end of the outer bushing, the rack moves to the outer bushing to the limit distance, while the fixed plate moves to the side of the fixed plate to the limit distance as the second spring is compressed to the maximum stroke. This limits the rotation angle of the adjusting plate, making the adjustment more convenient. In addition, grooves and ridges are provided on both sides of the adjusting plate. As the grooves and ridges fit together, the sealing effect of the air ducts on both sides of the inverter housing is improved, further improving the flexibility of the air duct adjustment.

[0027] Step 4: To facilitate the inspection of electronic components inside the inverter housing by staff, a quick-opening device is installed on the top and bottom side plates. Pulling the pull groove to lift the side door causes the connecting plate to move upwards simultaneously. At this time, the first spring retracts, facilitating the rotation of the side door. When closing, the pull groove is released, and the side door swings under gravity. When the side door, which is set at a certain angle at the bottom, approaches the bottom side plate, it is blocked and locked by one side of the bottom side plate. Pushing the side door again locks it into the limiting groove to complete the closure. When closing, the limiting groove at the bottom of the bottom side plate provides resistance, preventing the door from opening into or out of the inverter housing.

[0028] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0029] 1. This invention, through an adjustable-angle heat dissipation adjustment device, reduces the internal airflow while preventing dust. Combined with adjustable-speed fans placed at the side and top air vents, it can effectively adjust the heat dissipation intensity, solving the problem of not being able to specifically adjust the internal heat generated by the electronic components inside the inverter under different operating loads.

[0030] 2. The present invention features adjustable forced convection cooling, which, in conjunction with a heat dissipation device, can provide heat dissipation for all electronic components inside the inverter housing, and provides primary heat dissipation for high-heat components at the contact point on one side of the base plate, effectively improving the heat dissipation effect inside the inverter housing.

[0031] 3. In this invention, the adjustment of forced convection heat dissipation is achieved by limiting the distance the rack moves back and forth through the cooperation of the abutment plate and the fixing plate, thereby limiting the rotation angle of the adjusting plate.

[0032] 4. The combination of the top and bottom side panels in this invention facilitates the inspection of electronic components inside the inverter housing by staff, and prevents the side door from being opened into or out of the inverter housing. Attached Figure Description

[0033] Figure 1This is a schematic diagram of the external structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the internal structure of the quick-opening device of the present invention;

[0036] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 This is a schematic diagram of the bottom structure of the quick-opening device of the present invention;

[0038] Figure 6 This is a schematic diagram of the structure of the heat dissipation bar adjustment device of the present invention;

[0039] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0040] Figure 8 For the present invention Figure 6 Enlarged view of point C in the middle;

[0041] Figure 9 This is a side view of the present invention.

[0042] In the picture:

[0043] 1. Inverter housing; 2. Heat dissipation adjustment device; 3. Heat dissipation device; 4. Fixing plate; 5. Heat dissipation fins; 6. Top side plate; 7. Bottom side plate; 8. Side frame; 9. Rack; 10. Shaft; 11. Adjustment plate; 101. Side air vent; 102. Top air vent; 501. Thermal conductive copper pipe; 502. Thermal conductive fin; 503. Base plate; 504. Heat dissipation chamber; 505. Liquid delivery pipe; 506. Heat dissipation platform; 507. Condenser. Pipe; 508, Liquid transfer pump; 601, Slot; 602, Connecting plate; 603, First spring; 604, Connecting seat; 605, Side door; 606, Pull groove; 701, Limiting groove; 801, Connecting strip; 802, Outer bushing; 803, Lead screw; 804, Inner shaft; 805, Limiting strip; 806, Abutment plate; 901, Fixing piece; 902, Second spring; 1101, Groove; 1102, Raised strip. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example

[0046] Please see Figure 1-9 This invention provides a technical solution: a photovoltaic energy storage inverter with good heat dissipation, including an inverter housing 1. Heat dissipation adjustment devices 2 are provided on both sides of the outer surface of the inverter housing 1, and a heat dissipation device 3 is provided on the top of the outer surface of the inverter housing 1. A fixing plate 4 is fixedly installed inside the inverter housing 1, and multiple heat dissipation fins 5 are fixedly embedded inside the fixing plate 4. A top side plate 6 and a bottom side plate 7 are fixedly installed on one side of the outer surface of the inverter housing 1. A side vent 101 is opened on one side of the outer surface of the inverter housing 1, and a top vent 102 is opened on the top of the outer surface of the inverter housing 1. The heat dissipation adjustment device 2 includes a side frame 8, a rack 9, a rotating shaft 10, and an adjusting plate 11. Thermal conductive copper pipes 501 are fixedly connected to both sides of the outer surface of the multiple heat dissipation fins 5. One side of the thermal conductive copper pipe 501 is fixedly embedded inside the inverter housing 1. Thermal conductive sheets 502 are fixedly sleeved on the outer surface of the multiple thermal conductive copper pipes 501, with one side of the thermal conductive sheet 502 being... A base plate 503 is fixedly connected to the bottom of the outer surface. The top of the outer surface of the heat-conducting plate 502 on the other side is fixedly connected to the heat dissipation device 3. The heat dissipation device 3 includes a heat dissipation chamber 504 and a liquid delivery pipe 505. The liquid delivery pipe 505 is fixedly embedded inside the heat dissipation chamber 504. A heat dissipation platform 506 is fixedly connected to one end of the outer surface of the liquid delivery pipe 505. A condenser pipe 507 is fixedly connected to one end of the outer surface of the heat dissipation platform 506. A liquid delivery pump 508 is fixedly connected to one end of the outer surface of the condenser pipe 507. The heat dissipation platform 506 and the liquid delivery pump 508 are both fixedly installed on the top of the outer surface of the inverter housing 1. The other end of the outer surface of the liquid delivery pipe 505 is fixedly installed on the outer surface of the liquid delivery pump 508. Slots 601 are provided on both sides of the inner wall of the top side plate 6. A connecting plate 602 is movably embedded inside the multiple slots 601. Multiple first springs 603 are fixedly connected to one side of the outer surface of the connecting plate 602. Multiple first springs 603 are fixedly installed on one side of the inner wall of the top side plate 6.

[0047] Please see Figure 1-9 Both ends of the outer surface of the connecting plate 602 are fixedly installed with connecting seats 604. Each side of the multiple connecting seats 604 is movably connected to a side door 605. A groove 606 is provided on one side of the outer surface of the side door 605. The cooperation of the connecting plate 602, connecting seats 604, side door 605 and groove 606 facilitates the opening of the side door 605. The side door 605 can be opened simply by lifting the groove 606. When closed, it is supported by the limiting groove 701 at the bottom of the bottom side plate 7, so that it will not open into or out of the inverter housing 1.

[0048] Please see Figure 1-9A limiting groove 701 is provided on one side of the outer surface of the bottom side plate 7. Multiple side frames 8 are fixedly installed on the outer surface of the inverter housing 1. The rack 9 is movably embedded in the inside of the side frame 8. The cooperation between the side frame 8 and the rack 9 provides bottom fixation for the subsequent angle adjustment of the adjustment plate 11.

[0049] Please see Figure 1-9 Multiple rotating shafts 10 are movably installed at the bottom of the inner wall of the side frame 8, and the adjusting plates 11 are fixedly sleeved on the outer surface of the rotating shafts 10. The cooperation of the rack 9, rotating shafts 10 and adjusting plates 11, due to the meshing of the teeth, makes the angle adjustment more stable and facilitates the adjustment of the angle of the adjusting plates 11.

[0050] Please see Figure 1-9 A connecting piece is fixedly sleeved on one end of the outer surface of multiple racks 9, and a fixing piece 901 is movably connected to one end of the outer surface of multiple racks 9. The fixing piece 901 is configured to provide a limit for the maximum movement distance of one end of the rack 9.

[0051] Please see Figure 1-9 The fixing plate 901 is fixedly installed inside the inverter housing 1. Multiple second springs 902 are fixedly installed on one side of the outer surface of multiple fixing plates 901. The second springs 902 are fixedly connected to the connecting plate. The other end of the outer surface of multiple racks 9 is fixedly connected to the connecting strip 801. The second springs 902 always provide thrust to the racks 9, thereby improving the stability of the tooth meshing.

[0052] Please see Figure 1-9 Multiple outer bushings 802 are fixedly embedded inside the inverter housing 1. Each outer bushing 802 has a lead screw 803 threaded inside. Each lead screw 803 has an inner shaft 804 movably embedded inside. Multiple limit strips 805 are fixedly installed on the outer surface of each inner shaft 804. The arrangement of the outer bushings 802, lead screws 803, inner shafts 804, and limit strips 805 allows the movement of the connecting strip 801 to be adjusted by externally rotating the inner shaft 804, thereby changing the angle of the multiple adjusting plates 11.

[0053] Please see Figure 1-9 Each of the multiple connecting strips 801 has a stop plate 806 fixedly connected to one end of its outer surface. The lead screw 803 is movably connected to the stop plate 806. The stop plate 806 is configured to provide a limit for the maximum movement distance of one end of the rack 9, similar to the fixed plate 901.

[0054] Please see Figure 1-9 A groove 1101 is provided on one side of the outer surface of multiple adjusting plates 11, and a protrusion 1102 is fixedly installed on the other side of the outer surface of multiple adjusting plates 11. The groove 1101 and the protrusion 1102 are adapted to each other. The setting of the groove 1101 and the protrusion 1102 improves the sealing effect when the ventilation holes on both sides are closed.

[0055] This invention also discloses a method for using an electronic voltage sensor, specifically including the following steps:

[0056] Step 1: The bottom plate 503 is connected to the internal components via thermal grease to transfer heat from the internal components. Adjustable speed fans are installed at the side vents 101 and top vents 102. The bottom and sides serve as air inlets, while the top and side vents 101 and top vents 102 serve as air outlets, forming a heat dissipation airflow channel to achieve forced convection cooling. This, combined with the top heat dissipation device 3, conducts heat away from the heatsink fins 5 after convection cooling. The heat sink 506 has a liquid inlet on the outside, and coolant is added inside. Coolant circulates within the liquid delivery pipe 505 to cool the heat sink 3. The coolant inside the liquid delivery pipe 505 is circulated by the liquid delivery pump 508, working in conjunction with the heat sink 506 to dissipate heat. The heated coolant is used for heat dissipation. The heat dissipation platform 506 contains heat sinks and a liquid storage tank. The thermal conductivity of the fixed plate 4 is relatively low. Unlike existing technologies, the overall air duct inside the inverter housing 1 is improved. The adjustable heat dissipation adjustment device 2 on the bottom and sides serves as the air inlet, increasing the heat dissipation area of ​​the heat dissipation fins 5. The fans added at the side air inlets 101 and the top air inlet 102 provide forced convection heat dissipation to the entire inner cavity of the inverter housing 1, increasing the internal airflow. In addition to the main heat dissipation of the high-heat components attached to one side of the bottom plate 503, it can also provide convection heat dissipation to other components inside the inner cavity of the inverter housing 1. Together with the heat dissipation device 3, it effectively improves the heat dissipation and dust prevention effect inside the inverter housing 1.

[0057] Step 2: To facilitate the heat dissipation of electronic components inside the inverter housing 1 under different power levels and to prevent dust accumulation inside the inverter housing 1 when not in use, the side ventilation channels are effectively closed by adjusting the heat dissipation adjustment devices 2 set on both sides. This reduces the internal airflow while preventing dust. In conjunction with the adjustable speed fans placed at the side air vents 101 and top air vents 102, the heat dissipation intensity can be effectively adjusted, while reducing dust entering the inner cavity of the inverter housing 1. The adjustment method is to rotate the inner shaft 804 to drive the lead screw 803 to rotate. The outer shaft sleeve 802 is embedded inside the inverter housing 1. As the lead screw 803 rotates, it gradually moves and abuts against the connecting strip 801, thereby adjusting the position of the rack 9 inside the side frame 8. The bottom end of the rotating shaft 10 is provided with a gear that cooperates with the rack 9. As the rack 9 moves, it drives the rotation of multiple rotating shafts 10, thereby realizing the adjustment of the angle of the adjustment plates 11 on both sides.

[0058] Step 3: A fixing plate 901, a second spring 902, and a connecting plate are provided at one end of the rack 9. The fixing plate 901 and the outer bushing 802 are also embedded inside the inverter housing 1. The cooperation between the abutment plate 806 and the fixing plate 901 limits the distance of the rack 9's back and forth movement, and then limits the rotation angle of the adjusting plate 11. The limiting method is as follows: when the abutment plate 806 moves and is stuck at one end of the outer bushing 802, the rack 9 moves to the outer bushing 802 to the limit distance, while one end of the fixing plate 901 moves to the side of the fixing plate 901 to the limit distance as the second spring 902 is compressed to the maximum stroke. This limits the rotation angle of the adjusting plate 11, making the adjustment more convenient. In addition, grooves 1101 and protrusions 1102 are provided on both sides of the adjusting plate 11. As the grooves 1101 and protrusions 1102 fit together, the sealing effect of the air ducts on both sides of the inverter housing 1 is improved, further improving the flexibility of the air duct adjustment.

[0059] Step 4: To facilitate the inspection of electronic components inside the inverter housing 1 by staff, a quick-opening device is provided on the top side plate 6 and bottom side plate 7. Pulling the pull groove 606 to lift the side door 605 causes the connecting plate 602 to move upwards simultaneously. At this time, the first spring 603 retracts, facilitating the rotation of the side door 605. When closing, the pull groove 606 is released, and the side door 605 swings under gravity. When the side door 605, which is set at a certain angle at the bottom, approaches the bottom side plate 7, it is blocked and locked by one side of the bottom side plate 7. Pushing the side door 605 again, it is inserted into the limiting groove 701 to complete the closure. When closed, it is supported by the limiting groove 701 at the bottom of the bottom side plate 7, preventing it from opening into or out of the inverter housing 1.

[0060] 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 photovoltaic energy storage inverter with good heat dissipation, comprising an inverter housing (1), characterized in that, Heat dissipation adjustment devices (2) are provided on both sides of the outer surface of the inverter housing (1), and heat dissipation device (3) is provided on the top of the outer surface of the inverter housing (1). A fixing plate (4) is fixedly installed inside the inverter housing (1), and multiple heat dissipation fins (5) are fixedly embedded inside the fixing plate (4). A top side plate (6) is fixedly installed on one side of the outer surface of the inverter housing (1), and a bottom side plate (7) is fixedly installed on one side of the outer surface of the inverter housing (1). A side vent (101) is opened on one side of the outer surface of the inverter housing (1). The inverter housing (1) has a top air vent (102) on its outer surface. The heat dissipation adjustment device (2) includes a side frame (8), a rack (9), a rotating shaft (10), and an adjustment plate (11). Both sides of the outer surface of the multiple heat dissipation fins (5) are fixedly connected to heat-conducting copper pipes (501). One side of the heat-conducting copper pipe (501) is fixedly embedded inside the inverter housing (1). The outer surface of the multiple heat-conducting copper pipes (501) is fixedly fitted with heat-conducting plates (502). The bottom of the outer surface of one side of the heat-conducting plate (502) is fixedly connected to a base plate (503). On the other side, the top of the outer surface of the heat-conducting plate (502) is fixedly connected to the heat dissipation device (3). The heat dissipation device (3) includes a heat dissipation chamber (504) and a liquid delivery pipe (505). The liquid delivery pipe (505) is fixedly embedded inside the heat dissipation chamber (504). A heat dissipation platform (506) is fixedly connected to one end of the outer surface of the liquid delivery pipe (505). A condenser pipe (507) is fixedly connected to one end of the outer surface of the heat dissipation platform (506). A liquid delivery pump (508) is fixedly connected to one end of the outer surface of the condenser pipe (507). The heat dissipation platform... (506) and the liquid transfer pump (508) are both fixedly installed on the top of the outer surface of the inverter housing (1). The other end of the outer surface of the liquid transfer pipe (505) is fixedly installed on the outer surface of the liquid transfer pump (508). The inner walls of the top side plate (6) are provided with slots (601) on both sides. A connecting plate (602) is movably embedded in the interior of the multiple slots (601). A multiple first spring (603) is fixedly connected to one side of the outer surface of the connecting plate (602). The multiple first springs (603) are all fixedly installed on one side of the inner wall of the top side plate (6). Both ends of the outer surface of the connecting plate (602) are fixedly installed with connecting seats (604), and a side door (605) is movably connected to one side of the multiple connecting seats (604). A groove (606) is provided on one side of the outer surface of the side door (605). A limiting groove (701) is provided on one side of the outer surface of the bottom side plate (7), and multiple side frames (8) are fixedly installed on the outer surface of the inverter housing (1). The rack (9) is movably embedded in the inside of the side frame (8). Multiple rotating shafts (10) are movably installed at the bottom of the inner wall of the side frame (8), and the adjusting plates (11) are fixedly sleeved on the outer surface of the rotating shafts (10); Multiple outer bushings (802) are fixedly embedded inside the inverter housing (1). Each of the multiple outer bushings (802) is threaded with a lead screw (803). Each of the multiple lead screws (803) is movably embedded with an inner shaft (804). Multiple limit strips (805) are fixedly installed on the outer surface of each of the multiple inner shafts (804). A connecting strip (801) is fixedly connected to the other end of the outer surface of each of the multiple racks (9), and a stop plate (806) is fixedly connected to one end of the outer surface of each of the multiple connecting strips (801). The lead screw (803) is movably connected to the stop plate (806).

2. The photovoltaic energy storage inverter with good heat dissipation according to claim 1, characterized in that: A connecting piece is fixedly sleeved on one end of the outer surface of each of the multiple racks (9), and a fixing piece (901) is movably connected to one end of the outer surface of each of the multiple racks (9).

3. A photovoltaic energy storage inverter with good heat dissipation according to claim 2, characterized in that: The fixing plate (901) is fixedly installed inside the inverter housing (1), and a plurality of second springs (902) are fixedly installed on one side of the outer surface of the plurality of fixing plates (901), and the second springs (902) are fixedly connected to the connecting plate.

4. A photovoltaic energy storage inverter with good heat dissipation according to claim 1, characterized in that: A groove (1101) is provided on one side of the outer surface of each of the multiple adjustment plates (11), and a protrusion (1102) is fixedly installed on the other side of the outer surface of each of the multiple adjustment plates (11), and the groove (1101) and the protrusion (1102) are adapted to each other.

5. A heat dissipation method for a photovoltaic energy storage inverter with good heat dissipation performance, characterized in that, The photovoltaic energy storage inverter with good heat dissipation as described in any one of claims 1-4 includes the following steps: S1. The bottom plate (503) is connected to the internal components through thermal grease to transfer heat from the internal components. Adjustable speed fans need to be installed at the side air vents (101) and top air vents (102). The bottom and sides are the air inlets, and the top and side air vents (101) and top air vents (102) are the air outlets, forming a heat dissipation channel to achieve forced convection heat dissipation. In conjunction with the heat dissipation device (3) at the top, the heat remaining after convection heat dissipation inside the heat dissipation fins (5) is conducted away through the heat dissipation device (3). The heat dissipation platform (506) is provided with a liquid inlet on the outside and coolant is added inside. The heat dissipation device (3) is cooled by circulation inside the liquid delivery pipe (505). The coolant inside the liquid delivery pipe (505) is circulated by the liquid delivery pump (508) to cool the heat dissipation platform (506). The heated coolant is cooled. The heat dissipation platform (506) contains heat dissipation fins and a liquid storage tank. The thermal conductivity of the fixed plate (4) is low. In contrast to the existing technology, the overall air duct inside the inverter housing (1) is improved. The adjustable heat dissipation adjustment device (2) on the bottom and sides is used as the air inlet. The heat dissipation area of ​​the heat dissipation fins (5) is increased. The fans added at the side air inlet (101) and the top air inlet (102) force convection heat dissipation on the overall cavity of the inverter housing (1) to increase the internal airflow. In addition to the main heat dissipation of the high-heat components attached to the bottom plate (503) on one side, the other components inside the cavity of the inverter housing (1) can also be convectively cooled. With the help of the heat dissipation device (3), the heat dissipation effect and dust prevention effect inside the inverter housing (1) are effectively improved. S2. To facilitate the heat dissipation of electronic components inside the inverter housing (1) under different power levels and to prevent dust accumulation inside the inverter housing (1) when not in use, the side ventilation channels are effectively closed by adjusting the heat dissipation adjustment devices (2) set on both sides. This reduces the internal airflow while preventing dust. In conjunction with the adjustable speed fans installed at the side air vents (101) and top air vents (102), the heat dissipation intensity can be effectively adjusted, while reducing dust entering the inner cavity of the inverter housing (1). The adjustment method is as follows: The inner shaft (804) drives the lead screw (803) to rotate. The outer bushing (802) is embedded inside the inverter housing (1). As the lead screw (803) rotates, it gradually moves against the connecting bar (801), thereby adjusting the position of the rack (9) inside the side frame (8). The bottom end of the rotating shaft (10) is provided with a gear that cooperates with the rack (9). As the rack (9) moves, it drives the rotation of multiple rotating shafts (10), thereby realizing the adjustment of the angle of the two side adjustment plates (11). S3. A fixing plate (901), a second spring (902), and a connecting plate are provided at one end of the rack (9). The fixing plate (901) and the outer bushing (802) are also embedded inside the inverter housing (1). The cooperation between the abutment plate (806) and the fixing plate (901) limits the distance of the rack (9) to move back and forth, and then limits the rotation angle of the adjusting plate (11). The limiting method is: when the abutment plate (806) moves and is stuck at one end of the outer bushing (802), the rack (9) reaches the limit of moving towards the outer bushing (802). The distance, and one end of the fixed plate (901), as the second spring (902) is compressed to the maximum stroke, moves to the side of the fixed plate (901) to the limit distance, thereby limiting the rotation angle of the adjusting plate (11) and making the adjustment more convenient. In addition, grooves (1101) and protrusions (1102) are provided on both sides of the adjusting plate (11). As the grooves (1101) and protrusions (1102) fit together, the sealing effect of the air ducts on both sides of the inverter housing (1) is improved, and the adjustment flexibility of the air duct is further improved. S4. To facilitate the inspection of electronic components inside the inverter housing (1) by staff, a quick-opening device is provided with a top side plate (6) and a bottom side plate (7). Pull the pull groove (606) to lift the side door (605), and the connecting plate (602) moves up at the same time. At this time, the first spring (603) contracts, which facilitates the rotation of the side door (605). When closing, the pull groove (606) is removed, and the side door (605) swings under the action of gravity. When the side door (605) is set at a certain angle at the bottom and approaches the side of the bottom side plate (7), it is blocked and locked by the side of the bottom side plate (7). Push the side door (605) again to enter the limit groove (701) to complete the closure. When closing, the limit groove (701) at the bottom of the bottom side plate (7) provides the resistance, and there will be no situation of opening to the inside or outside of the inverter housing (1).

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