Photovoltaic inverter box heat dissipation structure and heat dissipation method

Abstract

The present invention discloses a heat dissipation structure and heat dissipation method for a photovoltaic inverter box, belonging to the field of photovoltaic inverters, comprising a box, two symmetrically distributed mounting seats provided at the bottom of the box, a temperature sensor provided in the box, a placement opening provided on one side of the box, two symmetrically distributed plates hinged in the placement opening, mounting holes provided on both sides of the box, dust nets provided in both mounting holes, filter cloths provided on opposite sides of the two dust nets, mounting brackets fixedly installed on the inner walls of both sides of the box, and cleaning components provided between the two mounting brackets and the dust nets on the same side. The present invention not only plays a dust-proof role through the provision of the dust net, but also facilitates the discharge of heat from the interior of the box, thereby achieving the effect of heat dissipation. The provision of the cleaning component plays a role in cleaning the dust net, which is conducive to maintaining the dust-proof and breathable effect of the dust net, and the first reduction motor and first fan blades in the cleaning component can play a role in dissipating heat.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic inverters, and more particularly to a photovoltaic inverter box heat dissipation structure and a heat dissipation method. Background Art

[0002] Photovoltaic inverters convert the variable DC voltage generated by photovoltaic solar panels into AC power at mains frequency, which can be fed back into commercial power transmission systems or used in off-grid power grids. Photovoltaic inverters are one of the important system balancers in photovoltaic array systems and can be used with general AC-powered equipment. Solar inverters have special functions for photovoltaic arrays, such as maximum power point tracking and islanding effect protection. When in use, photovoltaic inverters require heat dissipation through heat dissipation structures.

[0003] The patent application number CN202121940154.0 discloses a photovoltaic inverter box heat dissipation structure, which relates to the field of photovoltaic inverter technology, including a box, wherein a first heat dissipation hole is provided on both sides of the box, a second heat dissipation hole is provided on the bottom surface of the box, the box is hinged with two box doors, and a support column is fixed to the bottom surface of the box. Dust entering the interior of the box through the first heat dissipation hole is filtered and falls into the interior of the dust collection box, effectively preventing the dust from contacting the components inside the box. By providing a first waterproof mechanism, rainwater entering the interior of the box through the first heat dissipation hole can be intercepted and flowed out of the box along the water plate and the water trough. By providing a second waterproof mechanism, when the rain is too heavy and water accumulates on the ground, the rainwater will drive the floating ring and the floating plate to rise, and then the floating plate will block the second heat dissipation hole, effectively preventing rainwater from entering the interior of the box through the second heat dissipation hole.

[0004] With respect to the above-mentioned related technologies, the dust entering the interior of the box through the first heat dissipation hole is filtered out through a filter and falls into the interior of the dust collection box, effectively preventing the dust from contacting the components inside the box. However, the surface of the filter does not have a cleaning function. If the equipment is used for a long time, the holes in the filter may become clogged, thereby reducing the heat dissipation effect of the equipment. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a photovoltaic inverter box heat dissipation structure and heat dissipation method, which adopts the following technical solutions:

[0006] A photovoltaic inverter box heat dissipation structure includes a box, two symmetrically distributed mounting seats are provided at the bottom of the box, a temperature sensor is provided in the box, a placement opening is provided on one side of the box, two symmetrically distributed plates are hinged in the placement opening, mounting holes are provided on both sides of the box, dust nets are provided in the two mounting holes, filter cloths are provided on the opposite sides of the two dust nets, mounting racks are fixedly installed on the inner walls of both sides of the box, cleaning components are provided between the two mounting racks and the dust nets on the same side, a mounting frame is provided at the top of the box, the bottom of the mounting frame passes through the box, a refrigeration component is provided in the mounting frame, a collection frame is provided above the box, inclined rain shields are provided on both sides of the collection frame, a heat conduction plate is provided on the side of the box away from the placement opening, and a water guide component is provided between the collection frame and the box.

[0007] By adopting the above technical solution, when the equipment is in use, the staff places the dustproof net in the mounting hole opened on the side wall of the box. The dustproof net can play a dust-proof role. Filter cloth is provided on the opposite side of the two dustproof nets. The filter cloth not only plays a dust-proof role, but also plays a role in protecting the dustproof net. A cleaning component is provided on the opposite side of the two dustproof nets to clean the dustproof net, which is beneficial to maintaining the permeability of the dustproof net, and thus beneficial to maintaining the heat dissipation effect of the equipment. The cleaning component has the function of generating wind. The wind drives the heat inside the box to be discharged through the dustproof net, which plays a heat dissipation role, and the wind can blow away the dust that has been swept away. When the temperature inside the box is too high, cold air can be generated by the refrigeration component, and the cold air enters the box to achieve further heat dissipation effect, which is beneficial to improve the heat dissipation effect of the equipment. A collection frame is provided above the box to collect rainwater, and rain shields are provided on both sides of the collection frame to block rain. A water guide component is provided between the collection frame and the box to guide rainwater out of the collection frame. A heat conducting plate is provided on one side of the box to guide heat out of the box to achieve the effect of auxiliary heat dissipation.

[0008] Furthermore, the cleaning component includes a first reduction motor fixedly mounted on the inner wall on the opposite side of the two mounting frames, the side walls of the output shaft of the first reduction motor are fixedly sleeved with a first fan blade, two symmetrically distributed supports are fixedly mounted on the inner wall of the bottom end of the box body, and a reducer is fixedly mounted on the top of the two supports. The two first reduction motor output shafts are fixedly connected to the opposite end of the reducer on the same side, support rods are rotatably mounted on the opposite side of the two dust-proof nets, the opposite ends of the two support rods are fixedly connected to the opposite end of the reducer on the same side, the opposite ends of the two support rods pass through the dust-proof net on the same side, the side walls of the opposite ends of the two support rods are sleeved with rings, and three brush plates distributed in a circular array are fixedly mounted on the side walls of the two rings, and annular grooves are opened on the opposite side of the two dust-proof nets, and fixing rings are provided in the two annular grooves.

[0009] By adopting the above technical scheme, dustproof nets are provided on both sides of the box body, which not only play a role of dustproof, but also can discharge the heat inside the box body to achieve the effect of heat dissipation, and filter cloths are provided on the opposite sides of the two dustproof nets to achieve a further dustproof effect, and the filter cloths can play a role of protecting the dustproof nets. A temperature sensor is provided in the box body, which detects the temperature inside the box body through the temperature sensor. When the temperature inside the box body is too high, the first fan blades on the same side are driven to rotate by the first reduction motor, and wind force is generated by the rotation of the first fan blades. The wind force discharges the heat inside the box body through the dustproof nets on the same side, which can play a role of heat dissipation, and the first reduction motor drives the support rod on the same side to rotate through the reducer, and the support rod drives the brush plate on the same side located on the side wall of the dustproof net to rotate, which can play a role of cleaning the dustproof net and the filter cloth, which is beneficial to maintaining the permeability of the dustproof net and the filter cloth, and thus is beneficial to maintaining the heat dissipation effect of the equipment. Through the setting of the reducer, the rotation speed of the support rod is slowed down by the reducer, which is convenient for the brush plate to rotate slowly, which is beneficial to reducing the wear of the brush plate, and thus is beneficial to maintaining the cleaning effect of the equipment.

[0010] Furthermore, a plurality of limit blocks distributed in a circular array are fixedly mounted on the side walls at opposite ends of the two support rods, and limit grooves matching the limit blocks on the same side are formed on the inner walls of the two collars.

[0011] By adopting the above technical solution, the collar and the support rod on the same side are fixed by fasteners of existing technology. When installing the collar, the staff slides the collar onto the side wall of the support rod, and a limit block is fixedly installed on the side wall of the support rod. A limit groove is provided on the inner wall of the collar that engages with the limit block. The engagement of the limit block and the limit groove plays a role in positioning the collar, which is convenient for subsequent fixation and can fix the brush plate.

[0012] Furthermore, the refrigeration assembly includes a mounting plate fixedly installed in the mounting frame, a second reduction motor is fixedly installed on the bottom end of the mounting plate, a second fan blade is fixedly sleeved on the side wall of the output shaft of the second reduction motor, a plurality of semiconductor refrigeration plates distributed in a linear array are provided on the top of the mounting frame, a frame body is fixedly installed on the top of the mounting frame, and heat dissipation holes distributed in a rectangular array are opened on the top of the frame body, and the tops of the semiconductor refrigeration plates all pass through the mounting frame and extend into the frame body.

[0013] By adopting the above technical solution, when the temperature inside the box is too high, cold air is generated by the semiconductor refrigeration plate, and then the second fan blade is driven to rotate by the second reduction motor. The rotation of the second fan blade generates wind force, and the wind force introduces the cold air generated by the semiconductor refrigeration plate into the box, which can play a role in cooling. The heat inside the box can be discharged through the dustproof net, which can further dissipate heat, which is beneficial to improving the heat dissipation efficiency of the equipment. The cooling end of the semiconductor refrigeration plate is located in the installation frame, and the heating end of the semiconductor refrigeration plate is located in the frame, which is beneficial to maintaining the cooling effect of the semiconductor refrigeration plate.

[0014] Furthermore, dustproof cotton is provided on the top of the frame, and two symmetrically distributed connecting pipes are provided between the installation frame and the frame, and guide fans are provided in the two connecting pipes.

[0015] By adopting the above technical solution, a connecting pipe is connected between the frame and the installation frame, and a guide fan is provided in the connecting pipe. When the guide fan is running, the cold air in the installation frame can enter the frame through the connecting pipe. The cold air acts on the heating end of the semiconductor refrigeration plate, which can dissipate heat for the semiconductor refrigeration plate. The heat generated by the heating end of the semiconductor refrigeration plate can be discharged through the heat dissipation holes opened on the top of the frame, thereby achieving the heat dissipation effect, which is beneficial to maintaining the use effect of the semiconductor refrigeration plate.

[0016] Furthermore, the water guide assembly includes a filter plate arranged in the collection frame, a coil is provided on the side of the box away from the placement port, and a conduit is provided on one side of the collection frame. The conduit is connected to the opposite end of the coil, and two symmetrically distributed slide grooves are provided on the inner walls on both sides of the collection frame. Sliders are provided in the slide grooves, and the slides are fixedly connected to the side opposite to the filter plate.

[0017] By adopting the above technical solution, a collection frame is provided on the top of the box, and the collection frame and the box are connected by a column. The collection frame can collect rainwater. A heat conduction plate is provided on the side of the box away from the placement port, which can conduct heat. Rainwater enters the coil through the conduit. The coil is located on the side of the box away from the placement port. The heat discharged from the box can be taken away by the rainwater, thereby achieving a further cooling effect, which is beneficial to improving the utilization rate of rainwater.

[0018] Furthermore, protective frames are fixedly installed on both sides of the box, and inclined baffles are fixedly installed on opposite sides of the two protective frames. Multiple air holes distributed in a circular array are opened on opposite sides of the two protective frames, and dust outlets are opened on the lower side walls of the two protective frames.

[0019] By adopting the above technical solution, protective frames are provided on both sides of the box body, and the protective frame covers are provided on the outside of the dustproof net, which can protect the dustproof net and the brush plate. The protective frame is provided with air holes on the side away from the box body to facilitate air circulation, and baffles are provided on the opposite sides of the two protective frames to prevent rainwater from entering the interior of the box body through the air holes, and dust outlets are provided on the side walls of the lower sections of the two protective frames to facilitate cleaning of dust dropped from unloading.

[0020] Furthermore, two symmetrically distributed storage frames are slidably installed in the box, and desiccant material is provided in the two storage frames. Through holes distributed in a rectangular array are opened on the side walls of the two storage frames. A sealing plate is fixedly installed on the side of the two storage frames near the placement opening. Card blocks are fixedly installed on the top and bottom ends of the two storage frames. Card slots matching the card blocks on the same side are opened on the inner walls of the top and bottom ends of the box, and rubber sleeves are provided on the side walls of the two card blocks.

[0021] By adopting the above technical solution, two symmetrically distributed storage frames are slidably installed inside the box. Desiccant material is provided in the storage frames, which can absorb moisture inside the box and prevent moisture from entering the box, thereby achieving a dehumidification effect. The storage frames are fixed by engaging with the card blocks and the card slots provided on the inner wall of the box. The side walls of the card blocks are provided with rubber sleeves, which are conducive to increasing the friction between the card blocks and the card slots, thereby increasing the stability of the engagement between the card blocks and the card slots, and thereby improving the stability of the storage frame installation.

[0022] Furthermore, four symmetrically distributed columns are provided between the top of the box body and the bottom of the collection frame, and plug-in blocks are fixedly installed on the top and bottom of the columns. Slots matching the plug-in blocks on the same side are provided on the top of the box body and the bottom of the collection frame.

[0023] By adopting the above technical solution, a column is provided between the box body and the collection frame, and an insert is provided at the top and bottom of the column. By engaging the insert with the slots opened at the top of the box body and the bottom of the collection frame, the collection frame can be supported and assembled, which is convenient for subsequent disassembly and assembly.

[0024] A photovoltaic inverter box heat dissipation method includes the following steps:

[0025] S1. Dust removal and heat dissipation: Dust-proof nets are provided on both sides of the box, which not only prevent dust but also discharge heat inside the box to achieve the effect of heat dissipation. Filter cloths are provided on the opposite sides of the two dust-proof nets to achieve a further dust-proof effect, and the filter cloths can protect the dust-proof nets. A temperature sensor is provided in the box to detect the temperature inside the box. When the temperature inside the box is too high, the first fan blades on the same side are driven to rotate by the first reduction motor, and wind is generated by the rotation of the first fan blades. The wind discharges the heat inside the box through the dust-proof net on the same side, which can achieve the effect of heat dissipation. The first reduction motor drives the support rod on the same side to rotate through the reducer, and the support rod drives the brush plate on the same side located on the side wall of the dust-proof net to rotate, which can clean the dust-proof net and the filter cloth, which is beneficial to maintaining the permeability of the dust-proof net and the filter cloth, and thus is beneficial to maintaining the heat dissipation effect of the equipment. Through the setting of the reducer, the speed of the support rod is slowed down by the reducer, which is convenient for the brush plate to rotate slowly, which is beneficial to reduce the wear of the brush plate, and thus is beneficial to maintaining the cleaning effect of the equipment.

[0026] S2. Refrigeration and heat dissipation: When the temperature inside the box is too high, cold air is generated by the semiconductor refrigeration plate, and then the second fan blade is driven to rotate by the second reduction motor. The rotation of the second fan blade generates wind force, and the wind force introduces the cold air generated by the semiconductor refrigeration plate into the box, which can play a role in cooling the temperature. The heat inside the box can be discharged through the dustproof net, which can further dissipate heat, which is beneficial to improving the heat dissipation efficiency of the equipment. The cooling end of the semiconductor refrigeration plate is located in the installation frame, and the heating end of the semiconductor refrigeration plate is located in the frame. A connecting pipe is connected between the frame and the installation frame, and a guide fan is provided in the connecting pipe. When the guide fan is turned on, the cold air in the installation frame can enter the frame through the connecting pipe. The cold air acts on the heating end of the semiconductor refrigeration plate, which can dissipate heat for the semiconductor refrigeration plate, which is beneficial to maintaining the use effect of the semiconductor refrigeration plate.

[0027] S3. Rainwater collection and heat conduction: A collection frame is provided on the top of the box, which is connected to the box by a column. The collection frame can collect rainwater. A heat conduction plate is provided on the side of the box away from the placement port to conduct heat. Rainwater enters the coil through the conduit. The coil is located on the side of the box away from the placement port. The rainwater can take away the heat conducted by the box, achieving a further cooling effect and helping to improve the utilization rate of rainwater.

[0028] S4. Rainproof and dehumidification: Protective frames are provided on both sides of the box, and the protective frame covers are provided on the outside of the dustproof net to protect the dustproof net and the brush plate. The protective frame is provided with air holes on the side away from the box to facilitate air circulation, and the lower side walls of the two protective frames are provided with dust outlets to facilitate cleaning of dust dropped during unloading. Storage boxes are provided in the box and desiccant materials are provided in the storage boxes to absorb moisture inside the box to achieve dehumidification effect, which is beneficial to maintain the use effect of the equipment.

[0029] In summary, the present invention has the following beneficial technical effects:

[0030] (1) In the present invention, the provision of the dustproof net not only plays a role in preventing dust, but also facilitates the discharge of heat from the interior of the box, thereby achieving the effect of heat dissipation. The provision of the cleaning component plays a role in cleaning the dustproof net, which is beneficial to maintaining the dustproof and breathable effect of the dustproof net, and the first reduction motor and the first fan blade in the cleaning component can play a role in dissipating heat.

[0031] (2) In the present invention, by setting up the refrigeration component, cold air is generated by the semiconductor refrigeration plate, and then the second reduction motor drives the second fan blade to rotate to generate wind force, and the wind force blows the cold air into the box body, achieving the effect of further cooling and heat dissipation, which is beneficial to improving the heat dissipation effect of the equipment.

[0032] (3) In the present invention, a collection frame is provided on the top of the box body through the setting of the water guide component. The collection frame and the box body are connected by a column. The collection frame can collect rainwater. A heat conduction plate is provided on the side of the box body away from the placement port to conduct heat. Rainwater enters the coil through the conduit. The coil is located on the side of the box body away from the placement port. The heat conducted out of the box body can be taken away by the rainwater, thereby achieving a further cooling effect, which is beneficial to improving the utilization rate of rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a photovoltaic inverter box heat dissipation structure and heat dissipation method from a first perspective of the present invention;

[0034] Figure 2 This is a schematic structural diagram of a photovoltaic inverter box heat dissipation structure and heat dissipation method from a second perspective of the present invention;

[0035] Figure 3 The present invention provides a photovoltaic inverter box heat dissipation structure and heat dissipation method Figure 2 A magnified view of middle A;

[0036] Figure 4 A cross-sectional view of a photovoltaic inverter box heat dissipation structure and heat dissipation method according to the present invention;

[0037] Figure 5 The present invention provides a photovoltaic inverter box heat dissipation structure and heat dissipation method Figure 4 Enlarged view of middle B;

[0038] Figure 6 The present invention provides a photovoltaic inverter box heat dissipation structure and heat dissipation method Figure 4 Enlarged view of middle C;

[0039] Figure 7 This is a diagram showing a cleaning component in a photovoltaic inverter box heat dissipation structure and heat dissipation method according to the present invention;

[0040] Figure 8 The present invention provides a photovoltaic inverter box heat dissipation structure and heat dissipation method Figure 7 Enlarged view of middle D;

[0041] Figure 9 This is an expanded view of the box and the collection frame in a photovoltaic inverter box heat dissipation structure and heat dissipation method of the present invention;

[0042] Figure 10 This is an exploded view of the refrigeration component in a photovoltaic inverter box heat dissipation structure and heat dissipation method of the present invention.

[0043] Description of the numbers in the figure:

[0044] 1. Box body; 2. Protective frame; 3. Baffle; 4. Storage frame; 5. Block; 6. Installation frame; 7. Frame; 8. Connecting pipe; 9. Column; 10. Collection frame; 11. Coil; 12. Conduit; 13. Slide; 14. Slider; 15. Filter plate; 16. Mounting frame; 17. Dust screen; 18. First reduction motor; 19. First fan blade; 20. Reducer; 21. Support; 22. Second fan blade; 23. Semiconductor refrigeration plate; 24. Second reduction motor; 25. Brush plate; 26. Ring; 27. Support rod; 28. Guide fan; 29. ​​Filter cloth; 30. Fixing ring; 31. Limit block; 32. Annular groove; 33. Mounting hole; 34. Insert block; 35. Mounting plate. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0048] The following is combined with Figure 1-10 The present invention is described in further detail.

[0049] See also Figure 1-10A photovoltaic inverter box heat dissipation structure includes a box 1, two symmetrically distributed mounting seats are provided at the bottom of the box 1, a temperature sensor is provided in the box 1, a placement opening is provided on one side of the box 1, and two symmetrically distributed plates are hinged in the placement opening, mounting holes 33 are provided on both sides of the box 1, dust nets 17 are provided in the two mounting holes 33, filter cloths 29 are provided on the opposite sides of the two dust nets 17, mounting brackets 16 are fixedly installed on the inner walls of both sides of the box 1, a cleaning assembly is provided between the two mounting brackets 16 and the dust nets 17 on the same side, the cleaning assembly includes a first reduction motor 18 fixedly installed on the inner wall on the opposite side of the two mounting brackets 16, and the side walls of the output shaft of the first reduction motor 18 are fixedly sleeved with first fan blades 19, the box Two symmetrically distributed supports 21 are fixedly installed on the inner wall of the bottom end of the body 1, and a reducer 20 is fixedly installed on the top of the two supports 21. The output shafts of the two first reduction motors 18 are fixedly connected to the opposite end of the reducer 20 on the same side. Support rods 27 are rotatably installed on the opposite side of the two dust-proof nets 17, and the opposite ends of the two support rods 27 are fixedly connected to the opposite end of the reducer 20 on the same side. The opposite ends of the two support rods 27 pass through the dust-proof net 17 on the same side. The side walls of the opposite ends of the two support rods 27 are sleeved with rings 26, and three brush plates 25 distributed in a circular array are fixedly installed on the side walls of the two rings 26. Annular grooves 32 are opened on the opposite side of the two dust-proof nets 17, and fixing rings 30 are provided in the two annular grooves 32.

[0050] When the device is in use, the staff places the dustproof net 17 in the mounting hole 33 opened on the side wall of the box body 1. The dustproof net 17 can play a role in dustproofing. Filter cloth 29 is provided on the opposite side of the two dustproof nets 17. The filter cloth 29 not only plays a role in dustproofing, but also plays a role in protecting the dustproof net 17. The filter cloth 29 and the dustproof net 17 are fixed by the fixing ring 30 and the annular groove 32 opened on the side wall of the dustproof net 17. When the device is used for a long time, a large amount of dust may adhere to the surface of the dustproof net 17 and the filter cloth 29. A temperature sensor is provided in the box body 1 to detect the temperature inside the box body 1. When the temperature inside the box body 1 is too high, the first fan blade 19 on the same side is driven to rotate by the first reduction motor 18 The rotation of the first fan blade 19 generates wind force, and the wind force discharges the heat inside the box body 1 through the dust-proof net 17 on the same side, which can play a role in heat dissipation, and the first reduction motor 18 drives the support rod 27 on the same side to rotate through the reducer 20, and the support rod 27 drives the brush plate 25 on the same side to rotate on the side wall of the dust-proof net 17, which can play a role in cleaning the dust-proof net 17 and the filter cloth 29, which is beneficial to maintaining the permeability of the dust-proof net 17 and the filter cloth 29, and thus is beneficial to maintaining the heat dissipation effect of the equipment. Through the setting of the reducer 20, the speed of the support rod 27 is slowed down by the reducer 20, which facilitates the slow rotation of the brush plate 25, which is beneficial to reducing the wear of the brush plate 25, and thus is beneficial to maintaining the cleaning effect of the equipment.

[0051] The side walls at the opposite ends of the two support rods 27 are fixedly installed with a plurality of limit blocks 31 distributed in a circular array, and the inner walls of the two collars 26 are provided with limit grooves matching the limit blocks 31 on the same side. The collars 26 and the support rods 27 on the same side are fixed by fasteners in the prior art. When installing the collars 26, the staff slides the collars 26 onto the side walls of the support rods 27, and the limit blocks 31 are fixedly installed on the side walls of the support rods 27. The inner walls of the collars 26 are provided with limit grooves engaged with the limit blocks 31. The engagement of the limit blocks 31 and the limit grooves plays a role in positioning the collars 26, which is convenient for subsequent fixation and can thus play a role in fixing the brush plate 25.

[0052] A mounting frame 6 is provided at the top of the box body 1, and the bottom end of the mounting frame 6 passes through the box body 1. A refrigeration assembly is provided in the mounting frame 6, and the refrigeration assembly includes a mounting plate 35 fixedly installed in the mounting frame 6. A second reduction motor 24 is fixedly installed at the bottom end of the mounting plate 35, and a second fan blade 22 is fixedly sleeved on the side wall of the output shaft of the second reduction motor 24. A plurality of semiconductor refrigeration plates 23 distributed in a linear array are provided at the top of the mounting frame 6. A frame body 7 is fixedly installed at the top of the mounting frame 6, and a heat dissipation hole distributed in a rectangular array is opened at the top of the frame body 7. The top ends of the semiconductor refrigeration plates 23 all pass through the mounting frame 6 and extend into the frame body 7.

[0053] When the temperature inside the box 1 is too high, cold air is generated by the semiconductor refrigeration plate 23, and then the second fan blade 22 is driven to rotate by the second reduction motor 24. The rotation of the second fan blade 22 generates wind force, and the wind force introduces the cold air generated by the semiconductor refrigeration plate 23 into the box 1, which can play a role in cooling the temperature. The heat inside the box 1 can be discharged through the dustproof net 17, which can further dissipate heat, which is beneficial to improving the heat dissipation efficiency of the equipment. The cooling end of the semiconductor refrigeration plate 23 is located in the installation frame 6, and the heating end of the semiconductor refrigeration plate 23 is located in the frame 7, which is beneficial to maintaining the cooling effect of the semiconductor refrigeration plate 23.

[0054] Dust-proof cotton is provided on the top of the frame 7. Two symmetrically distributed connecting pipes 8 are provided between the mounting frame 6 and the frame 7. A guide fan 28 is provided in each of the two connecting pipes 8. A connecting pipe 8 is connected between the frame 7 and the mounting frame 6. A guide fan 28 is provided in the connecting pipe 8. When the guide fan 28 is operated, the cold air in the mounting frame 6 can enter the frame 7 through the connecting pipe 8. The cold air acts on the heating end of the semiconductor refrigeration plate 23, which can dissipate heat for the semiconductor refrigeration plate 23. The heat generated at the heating end of the semiconductor refrigeration plate 23 can be discharged through the heat dissipation holes opened on the top of the frame 7, thereby achieving the heat dissipation effect, which is beneficial to maintaining the use effect of the semiconductor refrigeration plate 23.

[0055] A collecting frame 10 is provided above the box body 1, and inclined rain shields are provided on both sides of the collecting frame 10. A heat conduction plate is provided on the side of the box body 1 away from the placement port. A water guide component is provided between the collecting frame 10 and the box body 1. The water guide component includes a filter plate 15 arranged in the collecting frame 10, a coil 11 is provided on the side of the box body 1 away from the placement port, and a conduit 12 is provided on one side of the collecting frame 10. The conduit 12 is connected to the end opposite to the coil 11. Two symmetrically distributed chutes 13 are provided on the inner walls on both sides of the collecting frame 10, and sliders 14 are provided in the chutes 13. The sliders 14 are fixedly connected to the side opposite to the filter plate 15.

[0056] A collecting frame 10 is provided on the top of the box 1, and the collecting frame 10 and the box 1 are connected by a column 9. The collecting frame 10 can collect rainwater. A heat conducting plate is provided on the side of the box 1 away from the placement port, which can conduct heat. Rainwater enters the coil 11 through the conduit 12. The coil 11 is located on the side of the box 1 away from the placement port. The heat derived from the box 1 can be taken away by the rainwater, thereby achieving a further cooling effect, which is beneficial to improving the utilization rate of rainwater.

[0057] A protective frame 2 is fixedly installed on both sides of the box body 1, and a baffle 3 is fixedly installed on the opposite side of the two protective frames 2. A plurality of air holes distributed in a circular array are opened on the opposite sides of the two protective frames 2, and a dust outlet is opened on the lower side walls of the two protective frames 2. Protective frames 2 are provided on both sides of the box body 1, and the protective frame 2 cover is arranged on the outside of the dustproof net 17, which can play the role of protecting the dustproof net 17 and the brush plate 25. The protective frame 2 is provided with air holes on the side away from the box body 1 to facilitate air circulation, and a baffle 3 is provided on the opposite side of the two protective frames 2. The baffle 3 can prevent rainwater from entering the interior of the box body 1 through the air holes, and a dust outlet is opened on the lower side walls of the two protective frames 2 to facilitate cleaning of dust dropped during unloading.

[0058] Two symmetrically distributed storage frames 4 are slidably installed in the box body 1, and desiccant material is provided in the two storage frames 4. Through holes distributed in a rectangular array are opened on the side walls of the two storage frames 4. A sealing plate is fixedly installed on the side near the placement opening of the two storage frames 4. Blocks 5 are fixedly installed on the top and bottom ends of the two storage frames 4. Card slots matching the card blocks 5 on the same side are opened on the top inner wall and bottom inner wall of the box body 1. The side walls of the two card blocks 5 are covered with rubber sleeves. Two symmetrically distributed storage frames 4 are slidably installed inside the box body 1. Desiccant material is provided in the storage frames 4, which can absorb moisture inside the box body 1 and prevent moisture from entering the box body 1 to achieve a dehumidification effect. The storage frames 4 are fixed by engaging with the card blocks 5 and the card slots opened on the inner wall of the box body 1. The side walls of the card blocks 5 are covered with rubber sleeves, which are conducive to increasing the friction between the card blocks 5 and the card slots, thereby increasing the stability of the engagement between the card blocks 5 and the card slots, and improving the stability of the installation of the storage frames 4.

[0059] Four symmetrically distributed columns 9 are provided between the top of the box body 1 and the bottom of the collection frame 10. Insert blocks 34 are fixedly installed on the top and bottom of the columns 9. Slots matching the insert blocks 34 on the same side are provided at the top of the box body 1 and the bottom of the collection frame 10. Columns 9 are provided between the box body 1 and the collection frame 10. Insert blocks 34 are provided at the top and bottom of the columns 9. By engaging the insert blocks 34 with the slots opened at the top of the box body 1 and the bottom of the collection frame 10, the collection frame 10 can be supported and assembled, which is convenient for subsequent disassembly and assembly.

[0060] A photovoltaic inverter box heat dissipation method includes the following steps:

[0061] S1. Dust removal and heat dissipation: Dust-proof nets 17 are provided on both sides of the box body 1. The dust-proof nets 17 not only play a role in dust prevention, but also can discharge the heat in the box body 1 to achieve the effect of heat dissipation. Filter cloths 29 are provided on the opposite sides of the two dust-proof nets 17 to achieve a further dust-proof effect. The filter cloths 29 can protect the dust-proof nets 17. A temperature sensor is provided in the box body 1. The temperature in the box body 1 is detected by the temperature sensor. When the temperature inside the box body 1 is too high, the first fan blade 19 on the same side is driven to rotate by the first reduction motor 18. The rotation of the first fan blade 19 generates wind force, and the wind force dissipates the heat inside the box body 1 through the heat dissipation device on the same side. The dust-proof net 17 is discharged, which can play a role in heat dissipation, and the first reduction motor 18 drives the support rod 27 on the same side to rotate through the reducer 20, and the support rod 27 drives the brush plate 25 on the same side to rotate on the side wall of the dust-proof net 17, which can play a role in cleaning the dust-proof net 17 and the filter cloth 29, which is beneficial to maintaining the permeability of the dust-proof net 17 and the filter cloth 29, and thus is beneficial to maintaining the heat dissipation effect of the equipment. Through the setting of the reducer 20, the speed of the support rod 27 is slowed down by the reducer 20, which facilitates the slow rotation of the brush plate 25, which is beneficial to reducing the wear of the brush plate 25, and thus is beneficial to maintaining the cleaning effect of the equipment.

[0062] S2, cooling and heat dissipation: When the temperature inside the box 1 is too high, cold air is generated by the semiconductor refrigeration plate 23, and then the second fan blade 22 is driven to rotate by the second reduction motor 24. Wind is generated by the rotation of the second fan blade 22, and the wind force introduces the cold air generated by the semiconductor refrigeration plate 23 into the box 1, which can play a role in cooling the temperature, and the heat inside the box 1 can be discharged through the dustproof net 17, which can further dissipate heat, which is beneficial to improving the heat dissipation efficiency of the equipment. The cooling end of the semiconductor refrigeration plate 23 is located in the mounting frame 6, and the heating end of the semiconductor refrigeration plate 23 is located in the frame 7, and a connecting pipe 8 is connected between the frame 7 and the mounting frame 6. A guide fan 28 is provided in the connecting pipe 8. When the guide fan 28 is operated, the cold air in the mounting frame 6 can enter the frame 7 through the connecting pipe 8, and the cold air acts on the heating end of the semiconductor refrigeration plate 23, which can dissipate heat for the semiconductor refrigeration plate 23, which is beneficial to maintaining the use effect of the semiconductor refrigeration plate 23;

[0063] S3. Rainwater collection and heat conduction: A collection frame 10 is provided on the top of the box body 1. The collection frame 10 and the box body 1 are connected by a column 9. The collection frame 10 can collect rainwater. A heat conduction plate is provided on the side of the box body 1 away from the placement opening to conduct heat. Rainwater enters the coil 11 through a conduit 12. The coil 11 is located on the side of the box body 1 away from the placement opening. The rainwater can take away the heat conducted by the box body 1, achieving a further cooling effect, which is conducive to improving the utilization rate of rainwater.

[0064] S4. Rainproof and dehumidification: Protective frames 2 are provided on both sides of the box body 1. The protective frame 2 cover is provided on the outside of the dustproof net 17, which can protect the dustproof net 17 and the brush plate 25. The protective frame 2 is provided with air holes on the side away from the box body 1 to facilitate air circulation, and the lower side walls of the two protective frames 2 are provided with dust outlets to facilitate cleaning of dust falling from the unloading. A storage frame 4 is provided in the box body 1. The storage frame 4 is provided with desiccant material, which can absorb moisture inside the box body 1 to achieve the effect of dehumidification, which is conducive to maintaining the use effect of the equipment.

[0065] The implementation principle of the embodiment of the present invention is as follows: when the device is in use, the staff places the dustproof net 17 in the installation hole 33 opened on the side wall of the box body 1, and the dustproof net 17 can play a role in dustproofing. The two dustproof nets 17 are provided with filter cloths 29 on opposite sides. The filter cloths 29 not only play a role in dustproofing, but also play a role in protecting the dustproof nets 17. The two dustproof nets 17 are provided with cleaning components on opposite sides, which can play a role in cleaning the dustproof nets 17, which is conducive to maintaining the permeability of the dustproof nets 17, and further conducive to maintaining the heat dissipation effect of the device. The cleaning component has the function of generating wind, and the wind drives the heat inside the box body 1 to pass through the dustproof net 1 7 is discharged, which plays a role in heat dissipation, and the wind can blow away the swept dust. When the temperature inside the box 1 is too high, cold air can be generated by the refrigeration component, and the cold air enters the box 1 to achieve the effect of further heat dissipation, which is beneficial to improving the heat dissipation effect of the equipment. A collecting frame 10 is provided above the box 1 to collect rainwater, and rain shields are provided on both sides of the collecting frame 10 to block rain. A water guide component is provided between the collecting frame 10 and the box 1 to guide the rainwater in the collecting frame 10. A heat conducting plate is provided on one side of the box 1 to guide the heat in the box 1 to achieve the effect of auxiliary heat dissipation.

[0066] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic inverter box heat dissipation structure, characterized by: The invention comprises a box body (1), wherein two symmetrically distributed mounting seats are provided at the bottom of the box body (1), a temperature sensor is provided in the box body (1), a placement opening is provided on one side of the box body (1), and two symmetrically distributed plates are hinged in the placement opening, mounting holes (33) are provided on both sides of the box body (1), dust screens (17) are provided in the two mounting holes (33), and filter cloths (29) are provided on opposite sides of the two dust screens (17), mounting racks (16) are fixedly installed on the inner walls of both sides of the box body (1), and cleaning components are provided between the two mounting racks (16) and the dust screens (17) on the same side, a mounting frame (6) is provided at the top of the box body (1), the bottom end of the mounting frame (6) passes through the box body (1), a refrigeration component is provided in the mounting frame (6), a collection frame (10) is provided above the box body (1), and the collection frame (10) Both sides are provided with inclined rain shields, a heat conducting plate is provided on the side of the box body (1) away from the placement opening, and a water conducting component is provided between the collection frame (10) and the box body (1); The cleaning assembly includes a first reduction motor (18) fixedly mounted on the inner wall of the opposite side of the two mounting frames (16), the side wall of the output shaft of the first reduction motor (18) is fixedly sleeved with a first fan blade (19), the inner wall of the bottom end of the box (1) is fixedly mounted with two symmetrically distributed supports (21), the top of the two supports (21) is fixedly mounted with a reducer (20), the output shafts of the two first reduction motors (18) are fixedly connected to the opposite end of the reducer (20) on the same side, the opposite side of the two dustproof nets (17) are rotatably mounted with a support rod (27), the opposite end of the two support rods (27) are fixedly connected to the opposite end of the reducer (20) on the same side, the opposite end of the two support rods (27) passes through the dustproof net (17) on the same side, the side wall of the opposite end of the two support rods (27) is sleeved with a ring (26), and the two rings (26) The side walls are fixedly mounted with three brush plates (25) distributed in an annular array, and an annular groove (32) is provided on opposite sides of the two dust screens (17), and a fixing ring (30) is provided in the two annular grooves (32); The side walls at opposite ends of the two support rods (27) are fixedly mounted with a plurality of limiting blocks (31) distributed in a circular array, and the inner walls of the two collars (26) are provided with limiting grooves matching the limiting blocks (31) on the same side.

2. The photovoltaic inverter box heat dissipation structure according to claim 1, characterized in that: The refrigeration assembly includes a mounting plate (35) fixedly mounted in a mounting frame (6), a second reduction motor (24) fixedly mounted on the bottom end of the mounting plate (35), a second fan blade (22) fixedly sleeved on the side wall of the output shaft of the second reduction motor (24), a plurality of semiconductor refrigeration plates (23) distributed in a linear array are provided on the top end of the mounting frame (6), a frame body (7) is fixedly mounted on the top end of the mounting frame (6), and heat dissipation holes distributed in a rectangular array are opened on the top end of the frame body (7), and the top ends of the semiconductor refrigeration plates (23) all pass through the mounting frame (6) and extend into the frame body (7).

3. The photovoltaic inverter box heat dissipation structure according to claim 2, characterized in that: The top of the frame (7) is provided with dustproof cotton, and two symmetrically distributed connecting pipes (8) are provided between the installation frame (6) and the frame (7), and the two connecting pipes (8) are both provided with guide fans (28).

4. The photovoltaic inverter box heat dissipation structure according to claim 1, characterized in that: The water guide assembly includes a filter plate (15) arranged in a collection frame (10), a coil (11) is provided on the side of the box body (1) away from the placement port, a conduit (12) is provided on one side of the collection frame (10), and the conduit (12) is connected to the opposite end of the coil (11), and two symmetrically distributed slide grooves (13) are provided on the inner walls of both sides of the collection frame (10), and a slider (14) is provided in each of the slide grooves (13), and the slider (14) is fixedly connected to the side opposite to the filter plate (15).

5. The photovoltaic inverter box heat dissipation structure according to claim 1, characterized in that: Protective frames (2) are fixedly installed on both sides of the box body (1), and baffles (3) arranged in an inclined manner are fixedly installed on opposite sides of the two protective frames (2). A plurality of air holes distributed in a circular array are provided on opposite sides of the two protective frames (2), and dust outlets are provided on the lower side walls of the two protective frames (2).

6. The photovoltaic inverter box heat dissipation structure according to claim 1, characterized in that: Two symmetrically distributed storage frames (4) are slidably installed in the box body (1), and desiccant materials are provided in the two storage frames (4). Through holes distributed in a rectangular array are provided on the side walls of the two storage frames (4). A sealing plate is fixedly installed on one side of the two storage frames (4) close to the placement opening. A card block (5) is fixedly installed on the top and bottom ends of the two storage frames (4). Card slots matching the card block (5) on the same side are provided on the top inner wall and the bottom inner wall of the box body (1), and rubber sleeves are provided on the side walls of the two card blocks (5).

7. The photovoltaic inverter box heat dissipation structure according to claim 1, characterized in that: Four symmetrically distributed columns (9) are provided between the top of the box body (1) and the bottom of the collection frame (10), and plug-in blocks (34) are fixedly installed at the top and bottom of the columns (9). Slots matching the plug-in blocks (34) on the same side are provided at the top of the box body (1) and the bottom of the collection frame (10).

8. A photovoltaic inverter box heat dissipation method, according to a photovoltaic inverter box heat dissipation structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Dust removal and heat dissipation: Dustproof nets (17) are provided on both sides of the box (1). The dustproof nets (17) not only play a role in dust prevention, but also can discharge the heat in the box (1) to achieve the effect of heat dissipation. Filter cloths (29) are provided on opposite sides of the two dustproof nets (17) to achieve a further dust prevention effect. The filter cloths (29) can play a role in protecting the dustproof nets (17). A temperature sensor is provided in the box (1). The temperature sensor detects the temperature in the box (1). When the temperature inside the box (1) is too high, the first reduction motor (18) drives the first fan blade (19) on the same side to rotate. The rotation of the first fan blade (19) generates wind force. The wind force discharges the heat inside the box (1) through the dustproof net (17) on the same side, which can play a role in heat dissipation. The first reduction motor (18) drives the support rod (27) on the same side to rotate through the reducer (20). The support rod (27) The brush plate (25) on the same side is driven to rotate on the side wall of the dustproof net (17), so as to clean the dustproof net (17) and the filter cloth (29), which is beneficial to maintaining the permeability of the dustproof net (17) and the filter cloth (29), thereby maintaining the heat dissipation effect of the equipment. By setting the reducer (20), the speed of the support rod (27) is slowed down by the reducer (20), which facilitates the slow rotation of the brush plate (25), thereby reducing the wear of the brush plate (25), thereby maintaining the cleaning effect of the equipment. S2. Refrigeration and heat dissipation: When the temperature inside the box (1) is too high, cold air is generated by the semiconductor refrigeration plate (23), and then the second fan blade (22) is driven to rotate by the second reduction motor (24). Wind force is generated by the rotation of the second fan blade (22). The wind force guides the cold air generated by the semiconductor refrigeration plate (23) into the box (1), which can play a role in cooling. The heat inside the box (1) can be discharged through the dustproof net (17), which can play a role in further heat dissipation, which is conducive to improving the heat dissipation efficiency of the equipment. The cooling end of the semiconductor refrigeration plate (23) is located in the installation frame (6), and the heating end of the semiconductor refrigeration plate (23) is located in the frame (7). A connecting pipe (8) is connected between the frame (7) and the installation frame (6). A guide fan (28) is provided in the connecting pipe (8). When the guide fan (28) is running, the cold air in the installation frame (6) can enter the frame (7) through the connecting pipe (8). The cold air acts on the heating end of the semiconductor refrigeration plate (23), which can dissipate heat for the semiconductor refrigeration plate (23), thereby maintaining the use effect of the semiconductor refrigeration plate (23); S3. Rainwater collection and heat conduction: A collection frame (10) is provided on the top of the box (1). The collection frame (10) and the box (1) are connected by a column (9). The collection frame (10) can collect rainwater. A heat conduction plate is provided on the side of the box (1) away from the placement port to conduct heat. Rainwater enters the coil (11) through the conduit (12). The coil (11) is located on the side of the box (1) away from the placement port. The heat conducted out of the box (1) can be taken away by rainwater, achieving a further cooling effect, which is conducive to improving the utilization rate of rainwater. S4. Rainproof and dehumidification: Protective frames (2) are provided on both sides of the box (1). The protective frames (2) are covered on the outside of the dustproof net (17) to protect the dustproof net (17) and the brush plate (25). The protective frames (2) are provided with air holes on the side away from the box (1) to facilitate air circulation. Dust outlets are provided on the lower side walls of the two protective frames (2) to facilitate cleaning of dust falling from the unloading. A storage frame (4) is provided inside the box (1). Desiccant material is provided in the storage frame (4) to absorb moisture inside the box (1) to achieve a dehumidification effect, which is beneficial to maintaining the use effect of the equipment.

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