Multi-waterproof structure of photovoltaic inverter
By designing multiple waterproof structures on the photovoltaic inverter, including rain panels, deflectors and waterproof breathable membranes, the contradiction between heat dissipation and waterproofing during outdoor use is solved, effective waterproof and heat dissipation effects are achieved, and the stability and safety of the equipment are improved.
Patent Information
- Application Number
- CN202421218474.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When used outdoors, it is difficult to balance between heat dissipation and waterproofing, resulting in rainwater erosion and high-temperature heat dissipation problems, which may cause electrical short circuits, equipment damage and safety accidents.
A multiple waterproof structure of photovoltaic inverter is designed, including a heat dissipation port on the top and both sides of the inverter body, a rain cover and a deflector on the top, a waterproof and breathable membrane is connected to the bottom of the deflector, and a solid sleeve and a positioning shaft are provided on the outside of the deflector to further enhance the waterproof performance.
It effectively reduces equipment failures caused by rainwater, ensures heat dissipation efficiency, extends the service life of the equipment, and improves the overall safety of the photovoltaic system and the reliability of long-term operation.
Smart Images
Figure CN222638369U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic inverters, in particular to a photovoltaic inverter multi-waterproof structure. Background Art
[0002] As the global demand for renewable energy continues to grow, solar photovoltaic power generation systems are widely used due to their clean and sustainable characteristics. As a key component in photovoltaic power generation systems, photovoltaic inverters are responsible for converting the direct current generated by photovoltaic panels into alternating current and feeding it into the power grid.
[0003] At present, photovoltaic inverters installed in outdoor environments will face the problem of heat dissipation caused by rain erosion and high temperature, which poses a threat to the stable operation and long-term efficiency of the equipment. Although basic waterproof measures have been taken into account in the existing photovoltaic inverter design, it is often difficult to achieve an ideal balance between heat dissipation and waterproofing, especially in the design of the heat dissipation port. In order to ensure sufficient air circulation for effective heat dissipation, a large area of vents is often opened, which undoubtedly increases the risk of rainwater infiltration. Once rainwater enters the inverter through the heat dissipation port, it may not only cause electrical short circuits and equipment damage, but also cause safety accidents. In severe cases, it may even completely shut down, affecting the power generation efficiency and economic benefits of the entire photovoltaic system. Therefore, it is particularly important to design a photovoltaic inverter structure design that can effectively dissipate heat and has a high degree of waterproof performance. Utility Model Content
[0004] The purpose of the utility model is to provide a photovoltaic inverter with multiple waterproof structures to solve the problem raised in the above-mentioned background technology that although the current photovoltaic inverter has a basic waterproof design when used in an outdoor environment, the large-area ventilation adopted in the heat dissipation port design to ensure the heat dissipation effect increases the risk of water ingress, which may cause electrical short circuits, equipment damage, safety accidents and even system shutdowns, seriously affecting the power generation efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic inverter multi-waterproof structure, including an inverter body, the top and both sides of the inverter body are provided with heat dissipation ports, and the top of the inverter body is provided with a rain shield, the front and rear sides of the rain shield are provided with guide plates, the bottom end of the guide plate is connected to a waterproof and breathable membrane, the outer edge of the waterproof and breathable membrane is provided with an edge strip frame, and both sides of the outer end of the guide plate are provided with a fixed sleeve, the interior of the fixed sleeve is interspersed with a positioning shaft connected to the end of the edge strip frame, and rectangular frames are provided on both sides of the inverter body, and a plurality of rain shield strips are provided in the area of the outer wall of the inverter body located inside the rectangular frame.
[0006] Preferably, a turn buckle is rotatably connected to the outer side of the fixed sleeve, and a clamping block that matches the positioning shaft structure is provided at the bottom end of the turn buckle.
[0007] Preferably, the middle of the upper end of the rain shield is movably connected to the outer wall of the inverter body through a pin, and the positions of the rain shield and the heat dissipation openings on the side wall of the inverter body correspond one by one.
[0008] Preferably, a plurality of arc-shaped damping blocks are provided on the inner walls on both sides of the rectangular frame, and both ends of the rain shield strip are provided with snap-fitting holes that match the arc-shaped damping block structure.
[0009] Preferably, a water collection port is provided in the middle of the top of the rain shield, and a plurality of overflow grooves are evenly provided on the side of the water collection port corresponding to the guide plate.
[0010] Preferably, both inner walls on both sides of the lower end of the inverter body are provided with water receiving grooves, and the bottom wall of the water receiving groove is an outwardly inclined structure, and a plurality of liquid outlets are provided at positions of the inverter body corresponding to the water receiving grooves.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the photovoltaic inverter multiple waterproof structure can effectively reduce equipment failures caused by rain, while ensuring heat dissipation efficiency, extending the service life of the equipment, and improving the overall safety and long-term operation reliability of the photovoltaic system. The photovoltaic inverter multiple waterproof structure is provided with guide plates and waterproof breathable membranes on both the front and rear sides of the rain shield. The waterproof breathable membrane can adjust the extension state through the fixed sleeve, the positioning shaft, and the side strip frame to more effectively waterproof the top of the inverter body. The rain strips provided on both sides of the inverter body can reduce the direct impact of rain on the heat dissipation port on the side of the inverter body, further improving the waterproof effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of a photovoltaic inverter with multiple waterproof structures according to the utility model;
[0013] Figure 2 The utility model is a photovoltaic inverter with multiple waterproof structures Figure 1 The enlarged structural diagram at A in the middle;
[0014] Figure 3 This is a schematic diagram of the internal structure of a rectangular frame of a photovoltaic inverter with multiple waterproof structures according to the utility model;
[0015] Figure 4 The utility model is a schematic diagram of a top view of a rain shield with a multiple waterproof structure for a photovoltaic inverter.
[0016] In the figure: 1. Inverter body; 2. Heat dissipation port; 3. Rain shield; 4. Guide plate; 5. Waterproof and breathable membrane; 6. Side bar frame; 7. Rectangular frame; 8. Rain shield; 9. Arc damping block; 10. Water receiving trough; 11. Liquid outlet; 12. Fixed sleeve; 13. Positioning shaft; 14. Turn buckle; 15. Clamping block; 16. Water collection port. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4The utility model provides a technical solution: a photovoltaic inverter multi-waterproof structure, including an inverter body 1, the top and both sides of the inverter body 1 are provided with heat dissipation ports 2, the heat dissipation ports 2 on the top of the inverter body 1 are circular structures and are embedded with a filter screen, the heat dissipation ports 2 on both sides of the inverter body 1 are provided with a plurality of strip-shaped structures, and a rain shield 3 is welded and fixed to the top of the inverter body 1 through a support rod, and a guide plate 4 is welded and fixed to the front and rear sides of the rain shield 3, the guide plate 4 is an arc structure and a plurality of water inlets are provided on its top surface, the inner wall of the water inlet is an arc structure, and the bottom end of the guide plate 4 is connected to a waterproof and breathable membrane 5, and the material of the waterproof and breathable membrane 5 adopts a special microporous structure polymer, such as ePTFE (expanded polytetrafluoroethylene), TPU (thermoplastic polyurethane) or PVDF (polyvinylidene fluoride), etc., these materials are characterized by having tens of thousands of tiny pores, which are much smaller than water droplets and can prevent the passage of liquid water, but allow air molecules to flow freely. The outer edge of the waterproof and breathable membrane 5 is provided with a side bar frame 6, and both sides of the outer end of the guide plate 4 are provided with a fixed sleeve 12, and the internal movement of the fixed sleeve 12 is interspersed with a positioning shaft 13 fixedly connected to the end of the side bar frame 6, and both sides of the inverter body 1 are provided with a rectangular frame 7, and the outer wall of the inverter body 1 is located in the area inside the rectangular frame 7. A plurality of rain shield strips 8 are provided. The inverter body 1 of this structure can dissipate heat through the heat dissipation port 2 and protect against rain through the rain shield 3 during use, and the positioning shaft 13 can be passed through the inner part of the fixed sleeve 12. The vertical interlacing movement of the side strip frame 6 drives the movement of the side strip frame 6. When the side strip frame 6 moves, the stretched state of the waterproof breathable membrane 5 can be adjusted. In this way, the guide plate 4 and the waterproof breathable membrane 5 above the inverter body 1 can also play an effective auxiliary rainproof role, and the waterproof breathable membrane 5 can not only prevent external rainwater and moisture from invading the inside of the device from the heat dissipation port 2 on the top of the inverter body 1, but also ensure the gas exchange inside and outside the inverter body 1, so as to achieve effective pressure balance and heat dissipation functions. At the same time, the rainproof strip 8 can be manually adjusted in the rectangular frame 7 according to the ambient wind direction, so as to optimize the airflow path and improve the heat dissipation efficiency. At the same time, it reduces the direct impact of rainwater on the heat dissipation port 2 on the side of the inverter body 1 on rainy days. This multiple waterproof design effectively solves the contradiction between waterproofing and heat dissipation of the traditional inverter body 1. , which improves the environmental adaptability and stability of the equipment. The outer side of the solid sleeve 12 is rotatably connected with a turn buckle 14 through a rotating shaft, and the bottom end of the turn buckle 14 is welded and fixed with a clamping block 15 that matches the structure of the positioning shaft 13. The clamping block 15 is made of elastic metal and its inner wall is an arc-shaped structure. The turn buckle 14 of this structure can be rotated on the outer side of the solid sleeve 12 and squeeze the clamping block 15 at the position corresponding to the positioning shaft 13 to quickly limit the position of the positioning shaft 13, so that the waterproof and breathable membrane 5 remains in a stable stretched state. The middle of the upper end of the rain shield 8 is movably connected to the outer wall of the inverter body 1 through a pin shaft, and the rain shield 8 corresponds to the heat dissipation port 2 on the side wall of the inverter body 1 one by one. The inner walls on both sides of the rectangular frame 7 are provided with a plurality of arc-shaped damping blocks 9.Both ends of the rain shield 8 are provided with bayonet holes that match the arc-shaped damping block 9 structure. When the rain shield 8 of this structure rotates, it can slide on the arc-shaped damping block 9 through the bayonet holes at both ends to achieve the self-limiting effect of the rain shield 8 after adjusting the appropriate angle. A water collection port 16 is provided in the middle of the top of the rain shield 3, and a plurality of overflow grooves are evenly provided on the side of the water collection port 16 corresponding to the guide plate 4. The water collection port 16 of this structure can guide the rainwater falling on the top of the rain shield 3 from the overflow groove to the top surface of the guide plate 4 in a more concentrated manner, thereby achieving In order to evenly disperse rainwater, water receiving grooves 10 are provided on both inner walls of the lower end of the inverter body 1, and the bottom wall of the water receiving grooves 10 is an outwardly inclined structure, and a plurality of liquid outlets 11 are provided at positions corresponding to the water receiving grooves 10 of the inverter body 1. The water receiving grooves 10 of this structure can collect a small amount of rainwater that penetrates into the inverter body 1, and quickly discharge it through the liquid outlets 11, so as to avoid damage to the electronic components inside the inverter body 1 caused by the accumulated liquid, and further improve the waterproof performance of the inverter body 1.
[0019] Working principle: When using the photovoltaic inverter multi-waterproof structure, first, when the inverter body 1 is installed outdoors in a season with frequent rain, the staff can drive the side bar frame 6 to move up and down by vertically inserting the two sets of positioning shafts 13 inside the fixed sleeve 12. When the side bar frame 6 moves downward, the stretched state of the waterproof breathable membrane 5 can be adjusted until the waterproof breathable membrane 5 is straightened at the outer end of the guide plate 4. The turn buckle 14 is rotated on the outside of the fixed sleeve 12. The turn buckle 14 can squeeze the clamping block 15 at the corresponding position of the positioning shaft 13 to quickly limit the position of the positioning shaft 13, so that the stretched state of the waterproof breathable membrane 5 remains stable. When rainwater falls into the top of the rain shield 3, it will first be collected in the water collection port 16. Then, the rainwater in the water collection port 16 is guided from several overflow grooves to the top surface of the guide plate 4, and the guide plate 4 and the waterproof breathable membrane 5 then guide the rainwater evenly to effectively waterproof the heat dissipation port 2 on the top of the inverter body 1. At the same time, the rain shield 8 can be manually adjusted in angle inside the rectangular frame 7 according to the ambient wind direction. When the rain shield 8 rotates, it can slide on the arc damping block 9 through the bayonet at both ends until the rain shield 8 is adjusted to a suitable angle to reduce the direct impact of rainwater on the heat dissipation port 2 on the side of the inverter body 1. When a small amount of rainwater penetrates into the inside of the inverter body 1, it will flow into the water receiving trough 10, and the water receiving trough 10 will be quickly discharged through several liquid outlets 11, thereby completing a series of tasks.
[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A photovoltaic inverter multi-waterproof structure, comprising an inverter body (1), the top and both sides of the inverter body (1) are provided with heat dissipation openings (2), and the top of the inverter body (1) is provided with a rain shield (3), characterized in that: The front and rear sides of the rain shield (3) are both provided with guide plates (4), the bottom end of the guide plate (4) is connected to a waterproof breathable membrane (5), the outer edge of the waterproof breathable membrane (5) is provided with an edge strip frame (6), and both sides of the outer end of the guide plate (4) are provided with a fixed sleeve (12), the interior of the fixed sleeve (12) is inserted with a positioning shaft (13) connected to the end of the edge strip frame (6), and both sides of the inverter body (1) are provided with a rectangular frame (7), and the outer wall of the inverter body (1) is provided with a plurality of rain shield strips (8) in the area inside the rectangular frame (7).
2. The photovoltaic inverter multi-waterproof structure according to claim 1, characterized in that: The outer side of the fixed sleeve (12) is rotatably connected with a turn buckle (14), and the bottom end of the turn buckle (14) is provided with a clamping block (15) that matches the structure of the positioning shaft (13).
3. The photovoltaic inverter multi-waterproof structure according to claim 1, characterized in that: The middle of the upper end of the rain shield (8) is movably connected to the outer wall of the inverter body (1) via a pin shaft, and the positions of the rain shield (8) and the heat dissipation openings (2) on the side wall of the inverter body (1) correspond one to one.
4. The photovoltaic inverter multi-waterproof structure according to claim 3, characterized in that: A plurality of arc-shaped damping blocks (9) are provided on the inner walls of both sides of the rectangular frame (7), and both ends of the rain shield strip (8) are provided with snap-fitting holes that match the arc-shaped damping blocks (9) structure.
5. The photovoltaic inverter multi-waterproof structure according to claim 1, characterized in that: A water collection port (16) is provided in the middle of the top of the rain shield (3), and a plurality of overflow grooves are evenly provided on one side of the water collection port (16) corresponding to the guide plate (4).
6. The photovoltaic inverter multi-waterproof structure according to claim 1, characterized in that: Water receiving grooves (10) are provided on both inner walls of the lower end of the inverter body (1), and the bottom wall of the water receiving groove (10) is an outwardly inclined structure, and a plurality of liquid outlet holes (11) are provided at positions of the inverter body (1) corresponding to the water receiving grooves (10).