Photovoltaic power generation control device

Abstract

The utility model discloses a photovoltaic power generation control device, including, the cabinet body is equipped with installation cavity, air inlet and air outlet, the air inlet with the top end of installation cavity conduction, the air outlet with the bottom of installation cavity conduction, the flow guide assembly is equipped in installation cavity, the flow guide assembly includes a plurality of first flow guide strip and a plurality of second flow guide strip, a plurality of first flow guide strip along the width direction of cabinet body extends, a plurality of second flow guide strip along the height direction of cabinet body extends, a plurality of first flow guide strip and a plurality of second flow guide strip separate installation cavity, form a plurality of flow guide interval, first flow guide strip with second flow guide strip all are equipped with a plurality of flow guide hole, electrical element, electrical element is equipped in a plurality of flow guide interval, the utility model has the flow guide assembly, air inlet and air outlet cooperation arrangement, the heat generated by electronic component is sent to the outside, and the heat dissipation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation, and in particular to a photovoltaic power generation control device. Background Technology

[0002] Photovoltaic power generation is a technology that converts light energy into electrical energy by utilizing the photovoltaic effect at the semiconductor interface. Photovoltaic power generation control devices typically include photovoltaic modules, inverters, energy storage devices, power distribution units, and control systems.

[0003] Most existing photovoltaic power generation control devices use a single heat dissipation method with fixed air ducts and fans, without optimizing heat dissipation for local components. When internal electrical components generate a lot of heat during use, excessive heat accumulation in certain areas can easily occur, resulting in low heat dissipation efficiency and the possibility of electrical components burning out due to overheating, thus reducing the practicality of the photovoltaic power generation control device. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a photovoltaic power generation control device, wherein the flow guiding component, the air inlet and the air outlet are arranged in a coordinated manner to transfer the heat generated by the electrical components to the outside, and the heat dissipation efficiency is high.

[0005] The technical solution adopted by this utility model to solve its problem is: A photovoltaic power generation control device, comprising, The cabinet has an installation cavity, an air inlet, and an air outlet. The air inlet is connected to the top of the installation cavity, and the air outlet is connected to the bottom of the installation cavity. A flow guiding component is disposed within the mounting cavity. The flow guiding component includes a plurality of first flow guiding strips and a plurality of second flow guiding strips. The plurality of first flow guiding strips extend along the width direction of the cabinet, and the plurality of second flow guiding strips extend along the height direction of the cabinet. The plurality of first flow guiding strips and the plurality of second flow guiding strips separate the mounting cavity to form a plurality of flow guiding intervals. Both the first flow guiding strips and the second flow guiding strips are provided with a plurality of flow guiding holes. Electrical components, which are disposed within the plurality of said current-conducting intervals.

[0006] As an optional implementation, both the first guide strip and the second guide strip include a guide bracket and a mounting plate, the guide bracket and the mounting plate are snapped together, and the guide bracket is provided with the guide hole.

[0007] As an optional implementation, the flow guide bracket is provided with a first snap-fit ​​portion, and the mounting plate is provided with a second snap-fit ​​portion, wherein the first snap-fit ​​portion and the second snap-fit ​​portion are snap-fitted together.

[0008] As an optional implementation, the flow guide bracket includes a connecting plate and a plurality of flow guide plates. The top and bottom ends of the connecting plate are provided with a plurality of flow guide plates. Two adjacent flow guide plates form the flow guide hole. Each of the plurality of flow guide plates is provided with a second snap-fit ​​portion. The first snap-fit ​​portion snaps into the second snap-fit ​​portion so that the mounting plate and the flow guide bracket are arranged opposite to each other.

[0009] As an optional implementation, the first snap-fit ​​portion includes a snap-fit ​​protrusion and a first snap-fit ​​segment connected to each other, and the second snap-fit ​​portion includes a snap-fit ​​position and a second snap-fit ​​segment connected to each other. The first snap-fit ​​segment is connected to the flow guide bracket, the second snap-fit ​​segment is connected to the mounting plate, and the snap-fit ​​protrusion and the snap-fit ​​position are detachably snap-fitted together.

[0010] As an optional implementation, the cabinet body is further provided with a cabinet door, a mounting opening, and a waterproof component. The cabinet door covers the mounting opening, the mounting opening communicates with the mounting cavity, and the waterproof component surrounds the outer edge of the mounting opening and is located between the cabinet door and the mounting opening.

[0011] As an optional implementation, the waterproof component includes a first baffle and a second baffle. The second baffle is perpendicular to the first baffle and extends in a direction away from the mounting cavity. The first baffle surrounds the outer edge of the mounting opening. The outer side of the second baffle abuts against the inner side of the cabinet door. The first baffle, the second baffle, and the cabinet body form a waterproof gap.

[0012] As an optional implementation, a sealing strip is provided around the inward side of the cabinet door, and the sealing strip abuts against the outer side of the second baffle.

[0013] As an optional implementation, the top end of the mounting cavity is provided with an air inlet cavity corresponding to the air inlet, and the bottom end of the mounting cavity is provided with an air outlet cavity corresponding to the air outlet.

[0014] As an optional implementation, the second guide strip is provided on both sides of the installation cavity in the width direction, and a plurality of first guide strips are provided between the second guide strips on both sides. The first guide strip near the top of the cabinet forms the air inlet cavity with the top of the cabinet, and the first guide strip near the bottom of the cabinet forms the air outlet cavity with the bottom of the cabinet.

[0015] In summary, the photovoltaic power generation control device provided by this utility model has the following technical effects: a flow guiding component is set in the installation cavity, and the first and second flow guiding strips in the flow guiding component are both distributed with flow guiding holes. Corresponding air inlets and air outlets are set in the installation cavity. The air entering from the air inlet efficiently guides the heat generated by the electronic components to the air outlet through the flow guiding holes, thereby accelerating the heat dissipation rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the cabinet structure of this utility model; Figure 4 This is a schematic diagram of the cabinet door and sealing strip of this utility model; Figure 5 This is a schematic diagram of the structure of the first and second guide strips of this utility model; Figure 6 This utility model Figure 5 An enlarged view of A.

[0018] The meanings of the reference numerals in the attached drawings are as follows: 1. Cabinet; 11. Mounting cavity; 111. Air guide interval; 112. Air inlet cavity; 113. Air outlet cavity; 12. Air inlet; 13. Air outlet; 14. Cabinet door; 15. First baffle; 16. Second baffle; 17. Sealing strip; 2. First guide strip; 21. Guide hole; 22. Guide bracket; 221. First snap-fit ​​part; 2211. Snap-fit ​​protrusion; 2212. First snap-fit ​​section; 23. Mounting plate; 231. Second snap-fit ​​part; 2311. Snap-fit ​​position; 2312. Second snap-fit ​​section; 232. Connecting plate; 233. Guide plate; 3. Second guide strip; 4. Electrical component. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0024] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0025] See Figures 1 to 6This utility model discloses a photovoltaic power generation control device, including a cabinet 1, a flow guiding assembly, and electrical components 4. The cabinet 1 has a mounting cavity 11, an air inlet 12, and an air outlet 13. The air inlet 12 is connected to the top of the mounting cavity 11, and the air outlet 13 is connected to the bottom of the mounting cavity 11. The flow guiding assembly is disposed in the mounting cavity 11 and includes multiple first flow guiding strips 2 and second flow guiding strips 3. The first flow guiding strips 2 extending along the width direction of the cabinet 1 and the multiple second flow guiding strips 3 extending along the height direction of the cabinet 1 divide the mounting cavity 11 into multiple flow guiding intervals 111. The first flow guiding strips 2 and the second flow guiding strips 3 are each provided with multiple flow guiding holes 21. The electrical components 4 are disposed in the multiple flow guiding intervals 111.

[0026] Based on the above structure, when using the photovoltaic power generation control device of this utility model, during assembly, since both the first guide strip 2 and the second guide strip 3 are installed in the mounting cavity 11, the first guide strip 2 extends in the width direction and can be spaced apart in the height direction, while the second guide strip 3 extends in the height direction and can be spaced apart in the width direction. This divides the mounting cavity 11 into transverse and longitudinal guide strips, forming guide intervals 111 for installing electrical components 4. Different electrical components 4 are installed in different guide intervals 111. This allows the heat generated by the electrical components 4 during operation to be dispersed through the first guide strip 2 and the second guide strip 3, preventing safety hazards caused by heat concentration during operation. Compared to the prior art, where the electrical components 4 are densely distributed within the mounting cavity 11, resulting in concentrated heat and poor heat dissipation efficiency during operation, this design addresses the issue of heat concentration and heat dissipation inefficient operation caused by the dense distribution of electrical components 4 within the mounting cavity 11.

[0027] Therefore, in this embodiment, a first guide bar 2 and a second guide bar 3 are provided to evenly separate the electrical components 4. At the same time, the first guide bar 2 and the second guide bar 3 are provided with guide holes 21. The guide holes 21 cooperate with the air inlet 12 and the air outlet 13 to guide the heat to the air outlet 13 and accelerate the heat dissipation speed.

[0028] Since multiple airflow holes 21 are provided on both the first guide bar 2 and the second guide bar 3, in order to dissipate the heat generated by the internal electrical components 4 in a timely manner, the external airflow can be guided into the bottom of the mounting cavity 11 by the air inlet 12 at the top of the mounting cavity 11, and the air outlet 13 is located at the bottom of the mounting cavity 11. In this way, the airflow direction is from top to bottom. During the flow, it enters the guide interval 111 through each guide hole 21, carries away the heat of each guide interval 111, and then flows to the air outlet 13 for discharge, thereby improving the heat dissipation efficiency.

[0029] Specifically, the cabinet 1 is made of hot-dip galvanized steel sheet, and the surface is treated with electrostatic powder coating. The cabinet 1 is continuously sealed with sealant around its perimeter, providing excellent sealing and protection.

[0030] Furthermore, both the first guide strip 2 and the second guide strip 3 include a guide bracket 22 and a mounting plate 23, and the guide bracket 22 is snapped into the mounting plate 23. The guide bracket 22 is also provided with a guide hole 21.

[0031] When assembling the flow guide bracket 22 and the mounting plate 23, the mounting plate 23 can be snapped onto one side of the flow guide bracket 22, so that the mounting plate 23 and the other side of the flow guide bracket 22 are opposite each other. In this way, the first flow guide strip 2 and the second flow guide strip 3 can form a hollow structure. When the flow guide bracket 22 is guiding the flow, the airflow can be guided through the internal hollow structure to facilitate the dissipation of heat.

[0032] Specifically, the flow guide bracket 22 in this embodiment has three faces, and the flow guide holes 21 extend and are arranged along two of the opposite directions to facilitate heat dissipation. Based on this structure, the mounting plate 23 corresponds to the face of the flow guide bracket 22 where the flow guide holes 21 are not provided.

[0033] It should also be noted that during transportation, transporting the first guide strip 2 and the second guide strip 3 as a whole would occupy excessive transportation space due to their hollow structures, increasing transportation costs. Furthermore, if the first guide strip 2 or the second guide strip 3 is partially damaged, the entire strip needs to be replaced, increasing maintenance costs. Therefore, in this embodiment, the first guide strip 2 and the second guide strip 3 are designed to be detachable and snap-fit. This allows for detachable transport, reducing the transportation space occupied by the hollow structures. In case of partial damage, the guide bracket 22 or the mounting plate 23 can be replaced instead of the entire strip, thus reducing transportation and maintenance costs.

[0034] Furthermore, the flow guide bracket 22 is provided with a first snap-fit ​​part 221, and the mounting plate 23 is provided with a corresponding second snap-fit ​​part 231. When assembling the first flow guide 2 or the second flow guide 3, the first snap-fit ​​part 221 is aligned with the second snap-fit ​​part 231 and snapped in to complete the assembly.

[0035] Furthermore, the flow guide bracket 22 includes a connecting plate 232 and multiple flow guide plates 233. The top and bottom ends of the connecting plate 232 are connected to the multiple flow guide plates 233, so that two adjacent flow guide plates 233 can form a flow guide hole 21. Each of the multiple flow guide plates 233 is provided with a second snap-fit ​​portion 231, and the first snap-fit ​​portion 221 snaps into the second snap-fit ​​portion 231.

[0036] Based on the above structure, when assembling the flow guide bracket 22, one end of multiple flow guide vanes 233 is connected to both ends of the connecting plate 232 respectively, and they are arranged to extend along the length of the connecting plate 232, so that the two rows of flow guide vanes 233 at both ends of the connecting plate 232 are parallel and perpendicular to the connecting plate 232. The multiple flow guide vanes 233 are all the same in shape and size, and each pair of adjacent flow guide vanes 233 can form a flow guide hole 21. The end of the flow guide vane 233 away from the connecting plate 232 is provided with a second snap-fit ​​part 231. After the second snap-fit ​​part 231 snaps into the first snap-fit ​​part 221, the mounting plate 23 will be parallel to the connecting plate 232, so that the connecting plate 232, the two rows of flow guide vanes 233, the mounting plate 23 and the flow guide hole 21 form a hollow structure that allows heat to dissipate, guides airflow, and facilitates heat dissipation.

[0037] Compared to existing technologies, the manufacturing method of the guide hole 21 typically involves directly drilling multiple holes in the guide bracket 22, which is inconvenient. Therefore, in this embodiment, the surface where the guide hole 21 is located is decomposed into multiple small guide plates 233, and the guide plates 233 are connected one by one to the connecting plate 232 to form the guide bracket 22. In this way, adjacent guide plates 233 will form the guide hole 21, eliminating the need for drilling and improving convenience. Of course, the aforementioned guide plates 233 can be made of lightweight, heat-dissipating, and durable materials, such as aluminum alloy or titanium alloy. In this way, the individual guide plates 233 can also dissipate heat through their own physical properties, resulting in better heat dissipation performance.

[0038] Specifically, the first snap-fit ​​part 221 includes a snap-fit ​​protrusion 2211 and a first snap-fit ​​segment 2212 connected to each other, and the second snap-fit ​​part 231 includes a snap-fit ​​position 2311 and a second snap-fit ​​segment 2312 connected to each other. The first snap-fit ​​segment 2212 can be connected to the flow guide bracket 22, and the second snap-fit ​​segment 2312 can be connected to the mounting plate 23, so that the snap-fit ​​protrusion 2211 and the snap-fit ​​position 2311 can be detachably snapped together.

[0039] Based on the above structure, when assembling the first guide bar 2 and the second guide bar 3, align the end of the snap-fit ​​protrusion 2211 with the end of the snap-fit ​​position 2311, and push the snap-fit ​​protrusion 2211 along the length direction of the first guide bar 2 and the second guide bar 3 so that it slides into the snap-fit ​​position 2311, thereby snapping the first snap-fit ​​part 221 and the second snap-fit ​​part 231 together, completing the assembly of the first guide bar 2 and the second guide bar 3. When disassembly is required, simply pull the snap-fit ​​protrusion 2211 directly from the end of the first guide bar 2 or the second guide bar 3 to disengage it from the snap-fit ​​position 2311.

[0040] Compared to existing technologies, which typically use elastic buckles and latches to engage the first engaging portion 221 and the second engaging portion 231, this new technology aligns the elastic buckle with the latch, presses it to cause elastic deformation, and releases the pressure after it enters the latch, allowing the buckle to spring back and engage with the latch. However, the elasticity of the buckle diminishes with repeated use, which is not conducive to long-term use. Therefore, in this embodiment, the engagement of the first engaging portion 221 and the second engaging portion 231 can be completed simply by aligning and pushing the engaging protrusion 2211, without relying on the elasticity of the buckle, thus facilitating long-term use.

[0041] Specifically, the cabinet body 1 is also provided with a cabinet door 14, an installation port and a waterproof component. The cabinet door 14 covers the installation port, and the installation port is connected to the installation cavity 11. The waterproof component surrounds the outer edge of the installation port and is located between the cabinet door 14 and the installation port.

[0042] Based on the above structure, one side of the cabinet door 14 is rotatably connected to the cabinet body 1, and the cabinet door 14 can be closed and opened by rotation. A waterproof component is installed around the edge of the installation opening on the outward side. When external liquid falls, the waterproof component can catch it. The cabinet door 14 and the waterproof component work together to prevent liquid from flowing into the installation cavity 11 and affecting the normal operation of the electrical components 4.

[0043] Furthermore, the waterproof component includes a first baffle 15 and a second baffle 16. The direction of the second baffle 16 is perpendicular to the first baffle 15 and extends in a direction away from the mounting cavity 11. The first baffle 15 surrounds the edge of the mounting opening facing outwards. The outer side of the second baffle 16 can abut against the inner side of the cabinet door 14. In this way, the first baffle 15, the second baffle 16 and the cabinet body 1 can form a waterproof gap.

[0044] Based on the above structure, when external liquid falls, the waterproof gap at the top of the cabinet 1 catches the liquid, and the overflowing liquid flows to the waterproof gap on the side of the cabinet 1. The second baffle 16 can block the water flow of the waterproof gap from the outside of the opening of the mounting cavity 11, and can also prevent the liquid on the first baffle 15 from sliding into the mounting cavity 11 when the cabinet door 14 is opened, thus improving the waterproof effect.

[0045] Specifically, both the first baffle 15 and the second baffle 16 mentioned above are made of waterproof and corrosion-resistant materials, such as stainless steel, so that the first baffle 15 and the second baffle 16 can work normally outdoors stably for a long time.

[0046] Furthermore, a sealing strip 17 is provided on the inward side of the cabinet door 14, and the sealing strip 17 abuts against the outer side of the second baffle 16.

[0047] Based on the above structure, the position and size of the sealing strip 17 correspond to the second baffle 16. When the cabinet door 14 is closed, the sealing strip 17 is squeezed by the second baffle 16, and the two are tightly pressed together. When there is too much external liquid in the waterproof compartment, it may overflow from the top of the second baffle 16. At this time, the sealing strip 17 will catch it, further blocking the water flow in the waterproof compartment outside the opening of the mounting cavity 11. The sealing strip 17 and the waterproof component work together to prevent external debris from entering the mounting cavity 11, thus enhancing the sealing effect.

[0048] Specifically, the sealing strip 17 is made of corrosion-resistant material, such as rubber, so that the sealing strip 17 can work normally outdoors for a long time and provide better protection.

[0049] Furthermore, the top of the mounting cavity 11 is provided with an air inlet cavity 112 corresponding to the air inlet 12, and the bottom of the mounting cavity 11 is provided with an air outlet cavity 113 corresponding to the air outlet 13.

[0050] Based on the above structure, an axial fan is also provided at the air inlet 12. The axial fan is located inside the cabinet 1 and its size and shape correspond to the air inlet 12. When dissipating heat from the mounting cavity 11, the outside air is driven by the axial fan to enter from the air inlet 12. It diffuses and slows down in the air inlet cavity 112, forming a uniform and stable airflow. It then passes down through the middle of the mounting cavity 11. Under the guidance of the first guide bar 2 and the second guide bar 3, it smoothly and directionally carries the heat of the electrical components 4 in the guide interval 111 to the air outlet cavity 113. In the air outlet cavity 113, the heat is collected and slowed down, and then flows out from the air outlet 13.

[0051] Furthermore, a second guide strip 3 is provided on both sides of the width direction of the mounting cavity 11, and a plurality of first guide strips 2 are provided between the second guide strips 3 on both sides. The first guide strip 2 near the top of the cabinet 1 forms an air inlet cavity 112 with the top of the cabinet 1, and the first guide strip 2 near the bottom of the cabinet 1 forms an air outlet cavity 113 with the bottom of the cabinet 1.

[0052] Based on the above structure, the first guide strip 2 distributed in the height direction and the second guide strip 3 distributed in the width direction divide the mounting cavity 11 into multiple square guide intervals 111. The first guide strip 2 closest to the top of the mounting cavity 11 and the top of the cabinet 1 form an air inlet cavity 112, corresponding to the air inlet 12. The first guide strip 2 closest to the bottom of the mounting cavity 11 and the bottom of the cabinet 1 form an air outlet cavity 113, corresponding to the air outlet 13. When external air enters the air inlet cavity 112 at the top of the mounting cavity 11 from the air inlet 12, it can directly enter the guide interval 111 through the guide holes 21 on the first guide strip 2, improving heat dissipation efficiency.

[0053] It should be noted that the electrical components 4 in this embodiment include, but are not limited to, existing electrical components 4 such as transformers, protective relays, meters, uninterruptible power supplies, edge computing devices, rectifiers, switches, displays, 4G modules, and temperature control systems that cooperate with each other. The temperature control system includes, but is not limited to, temperature sensors, humidity sensors, axial fans, heaters, and temperature controllers. Furthermore, the specific structure and working principle of the aforementioned electrical components 4 are all existing technologies and are not part of the technical content to be protected in this application, and will not be described in detail here.

[0054] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A photovoltaic power generation control device, characterized in that: The cabinet has an installation cavity, an air inlet, and an air outlet. The air inlet is connected to the top of the installation cavity, and the air outlet is connected to the bottom of the installation cavity. A flow guiding component is disposed within the mounting cavity. The flow guiding component includes a plurality of first flow guiding strips and a plurality of second flow guiding strips. The plurality of first flow guiding strips extend along the width direction of the cabinet, and the plurality of second flow guiding strips extend along the height direction of the cabinet. The plurality of first flow guiding strips and the plurality of second flow guiding strips separate the mounting cavity to form a plurality of flow guiding intervals. Both the first flow guiding strips and the second flow guiding strips are provided with a plurality of flow guiding holes. Electrical components, which are disposed within the plurality of said current-conducting intervals.

2. The photovoltaic power generation control device according to claim 1, characterized in that: Both the first guide strip and the second guide strip include a guide bracket and a mounting plate, the guide bracket and the mounting plate are snapped together, and the guide bracket is provided with the guide hole.

3. The photovoltaic power generation control device according to claim 2, characterized in that: The flow guide bracket is provided with a first snap-fit ​​part, and the mounting plate is provided with a second snap-fit ​​part, and the first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together.

4. A photovoltaic power generation control device according to claim 3, characterized in that: The flow guide bracket includes a connecting plate and multiple flow guide plates. Multiple flow guide plates are provided at the top and bottom of the connecting plate. Two adjacent flow guide plates form the flow guide hole. Each of the multiple flow guide plates is provided with a second snap-fit ​​portion. The first snap-fit ​​portion snaps into the second snap-fit ​​portion so that the mounting plate and the connecting plate are positioned opposite each other.

5. A photovoltaic power generation control device according to claim 3, characterized in that: The first snap-fit ​​portion includes a snap-fit ​​protrusion and a first snap-fit ​​segment connected to each other, and the second snap-fit ​​portion includes a snap-fit ​​position and a second snap-fit ​​segment connected to each other. The first snap-fit ​​segment is connected to the flow guide bracket, and the second snap-fit ​​segment is connected to the mounting plate. The snap-fit ​​protrusion and the snap-fit ​​position are detachably snap-fitted together.

6. The photovoltaic power generation control device according to claim 1, characterized in that: The cabinet is also provided with a cabinet door, an installation opening and a waterproof component. The cabinet door covers the installation opening, the installation opening communicates with the installation cavity, and the waterproof component surrounds the outer edge of the installation opening and is located between the cabinet door and the installation opening.

7. A photovoltaic power generation control device according to claim 6, characterized in that: The waterproof component includes a first baffle and a second baffle. The second baffle is perpendicular to the first baffle and extends in a direction away from the mounting cavity. The first baffle surrounds the outer edge of the mounting opening. The outer side of the second baffle abuts against the inner side of the cabinet door. The first baffle, the second baffle, and the cabinet body form a waterproof gap.

8. A photovoltaic power generation control device according to claim 7, characterized in that: A sealing strip is provided around the inward side of the cabinet door, and the sealing strip abuts against the outer side of the second baffle.

9. A photovoltaic power generation control device according to claim 1, characterized in that: The top of the mounting cavity is provided with an air inlet cavity corresponding to the air inlet, and the bottom of the mounting cavity is provided with an air outlet cavity corresponding to the air outlet.

10. A photovoltaic power generation control device according to claim 9, characterized in that: The second guide strip is provided on both sides of the installation cavity in the width direction, and multiple first guide strips are provided between the second guide strips on both sides. The first guide strip near the top of the cabinet forms the air inlet cavity with the top of the cabinet, and the first guide strip near the bottom of the cabinet forms the air outlet cavity with the bottom of the cabinet.

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