Efficient heat dissipation device of centralized inverter

Abstract

The utility model discloses an efficient heat dissipation device of a centralized inverter, and mainly relates to the field of heat dissipation of centralized inverters. Comprising heat dissipation holes formed in an inverter box body, a filter screen used for covering the heat dissipation holes is arranged on the inner wall of the inverter box body, a cleaning frame is slidably connected to the inner wall of the inverter box body in the vertical direction, an air inlet pipe is arranged on the cleaning frame, the air inlet pipe is rotationally sleeved with a rotating sleeve, and a cleaning motor is arranged on the cleaning frame. A plurality of vent holes are formed in the air inlet pipe, a plurality of air inlet channels are formed in the inner wall of the rotating sleeve, a plurality of air spraying holes are formed in the air inlet channels in a communicating mode, nozzles are arranged on the outer wall of the rotating sleeve, cleaning brushes are arranged in the areas, located between the adjacent nozzles, of the outer wall of the rotating sleeve, and the cleaning brushes make contact with the filter screen. The beneficial effects of the centralized inverter are that the centralized inverter can solve the technical problem that the heat dissipation effect is affected because the filter screen of the conventional centralized inverter is blocked, realizes rapid and effective cleaning of the filter screen at the heat dissipation holes, and improves the heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of centralized inverter heat dissipation, specifically a high-efficiency heat dissipation device for centralized inverters. Background Technology

[0002] Centralized inverters are structures that combine multiple strings into a single inverter for DC-DC conversion and inversion. Therefore, they are widely used in large-scale ground-mounted power plants due to their low cost and high efficiency. Since the components of a centralized inverter are all integrated inside the inverter enclosure, a dedicated heat dissipation device is required to ensure the normal operation of the electronic components. Existing heat dissipation structures typically require multiple ventilation holes on the inverter enclosure. To prevent dust and impurities from entering the inverter enclosure, filters are also needed at these ventilation holes. However, after prolonged use, these filters are easily covered by dust and other impurities, leading to clogging. This significantly reduces the airflow into and out of the inverter enclosure, greatly decreasing the efficiency of ventilation and heat dissipation using fans, and ultimately affecting the overall heat dissipation performance of the centralized inverter after long-term use. Utility Model Content

[0003] The purpose of this utility model is to provide a high-efficiency heat dissipation device for centralized inverters. It can solve the technical problem that the heat dissipation structure of existing centralized inverters is easily affected by filter clogging after long-term use, thereby achieving rapid and effective cleaning of the filter at the heat dissipation holes, increasing the air flow rate at the heat dissipation holes, and improving the heat dissipation effect.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A high-efficiency heat dissipation device for a centralized inverter includes heat dissipation holes on the inverter housing, a fixed frame on the inner wall of the inverter housing, a filter screen inside the fixed frame for covering the heat dissipation holes, a cleaning rack slidably connected vertically to the inner wall of the inverter housing, an air intake pipe on the cleaning rack, a rotating sleeve on the outer side of the air intake pipe, a cleaning motor on the cleaning rack for driving the rotating sleeve to rotate, multiple vent holes on the air intake pipe, multiple air intake channels on the inner wall of the rotating sleeve that rotatably communicate with the vent holes, multiple jet holes extending to the outer wall of the rotating sleeve that are connected to the air intake channels, multiple nozzles on the outer wall of the rotating sleeve that communicate with the jet holes, and a cleaning brush in contact with the filter screen in the area between adjacent nozzles on the outer wall of the rotating sleeve.

[0006] Furthermore, the inner wall of the inverter housing is provided with a guide groove, the cleaning rack is slidably connected in the guide groove along the vertical direction, and the guide groove is provided with a power component for driving the cleaning rack to slide.

[0007] Furthermore, the power assembly includes a mobile motor and a guide rod and a screw arranged in parallel. The screw is fixed on the output shaft of the mobile motor, passes through the cleaning frame and is threadedly connected to it, and the guide rod passes through the cleaning frame and is slidably connected to it.

[0008] Furthermore, an air supply hose is connected to the air intake pipe, and a vertical clearance groove is provided on the side wall of the guide groove. The air supply hose passes through the clearance groove and is connected to the air intake pipe.

[0009] Furthermore, the bottom of the heat dissipation hole is inclined towards the outside of the inverter housing.

[0010] Furthermore, the interior of the heat dissipation hole is provided with a heat dissipation grille.

[0011] Furthermore, both the rotating sleeve and the output shaft of the cleaning motor are equipped with meshing gears.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The structure of this utility model includes a cleaning frame that is slidably connected to the inner wall of the inverter box along the vertical direction. A rotating sleeve is rotatably connected to the cleaning frame. A cleaning brush is provided on the rotating sleeve. The cleaning brush contacts the filter screen at the heat dissipation hole. With this structure, when the cleaning frame moves vertically to the filter screen, the rotating sleeve is driven to rotate by the cleaning motor, thereby causing the cleaning brush on the rotating sleeve to rotate and clean the filter screen, thereby removing the dust and impurities that clog the filter screen, ensuring the unobstructed flow of the filter screen, increasing the air flow rate at the heat dissipation hole after long-term use, and ensuring heat dissipation efficiency.

[0014] 2. An air inlet pipe is provided on the cleaning frame, and a rotating sleeve is mounted on the outside of the air inlet pipe. Multiple interconnected vent holes are provided on the side wall of the air inlet pipe, and an air inlet channel is provided on the inner wall of the rotating sleeve, connecting to the vent holes. Multiple jet nozzles extending to the outer wall of the rotating sleeve are connected to the air inlet channel, and nozzles are connected to the jet nozzles. The cleaning brush is located in the area between adjacent nozzles on the outer wall of the rotating sleeve. This structure allows the air entering through the air inlet pipe to be continuously ejected through the nozzles on the jet nozzles when the rotating sleeve rotates, ensuring that the nozzles between the cleaning brushes synchronously spray air towards the filter screen when the cleaning brushes are cleaning it. This blows the cleaned dust and impurities towards the outside of the inverter housing, preventing dust and impurities from falling back onto the filter screen, making filter cleaning more convenient and thorough, further increasing the airflow after filter cleaning, and improving ventilation and heat dissipation. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Appendix Figure 2 This is a front view of the present invention.

[0017] Appendix Figure 3 This is an appendix to this utility model. Figure 2 A cross-sectional view along the AA direction.

[0018] Appendix Figure 4 This is an appendix to this utility model. Figure 3 A magnified view of part B in the middle.

[0019] Appendix Figure 5 This is an appendix to this utility model. Figure 3 A cross-sectional view along the CC direction.

[0020] Appendix Figure 6 This is an appendix to this utility model. Figure 5 A magnified view of part D in the middle.

[0021] The labels shown in the attached diagram:

[0022] 1. Inverter housing; 2. Heat dissipation holes; 3. Fixing frame; 4. Filter screen; 5. Cleaning rack; 6. Air inlet pipe; 7. Rotating sleeve; 8. Cleaning motor; 9. Vent hole; 10. Air inlet channel; 11. Jet nozzle; 12. Nozzle; 13. Cleaning brush; 14. Guide groove; 15. Moving motor; 16. Guide rod; 17. Screw; 18. Air supply hose; 19. Clearance groove; 20. Heat dissipation grille; 21. Gear. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0024] Reference Figure 1 and Figure 2This utility model describes a high-efficiency heat dissipation device for a centralized inverter. The main structure includes multiple heat dissipation holes 2 on the inverter housing 1, penetrating the side wall of the inverter housing 1. A fixing frame 3 is fixed to the inner wall of the inverter housing 1 by welding or bolts. A filter screen 4 for covering the heat dissipation holes 2 is fixed inside the fixing frame 3 by bolts. The fixing frame 3 protrudes to one side relative to the inner wall of the inverter housing 1, causing the filter screen 4 to protrude into the inner wall of the inverter housing 1. This allows the subsequent cleaning structure to fully contact the protruding filter screen 4 when passing through it, facilitating cleaning operations. The cleaning structure will not contact any other part of the inner wall of the inverter housing 1 besides the filter screen 4, ensuring cleaning accuracy. A cleaning frame 5 is vertically slidably connected to the inner wall of the inverter housing 1. The cleaning frame 5 can adopt any existing frame structure, serving a supporting function. Driven by an existing motor or other drive structure, it slides vertically along the inner wall of the inverter housing 1. Figure 3 and Figure 4The cleaning frame 5 is equipped with an air inlet pipe 6, which is supplied with air by an air pump. A rotating sleeve 7 is rotatably mounted on the outside of the air inlet pipe 6 via a bearing. The rotating sleeve 7 has an annular longitudinal section. The contact point between the rotating sleeve 7 and the air inlet pipe 6 is sealed with a gasket. The cleaning frame 5 is equipped with a cleaning motor 8 that drives the rotating sleeve 7 to rotate. The cleaning motor 8 drives the rotating sleeve 7 to rotate using a synchronous belt or gear 21, etc. The air inlet pipe 6 has multiple vent holes 9, which are multiple sets penetrating the side wall of the air inlet pipe 6. These multiple sets of vent holes 9 extend along... Along the axial distribution of the intake pipe 6, each group of vent holes 9 is a circular array of multiple holes distributed on the side wall of the intake pipe 6. The inner wall of the rotating sleeve 7 is provided with multiple intake channels 10 that rotatably communicate with the vent holes 9. The intake channels 10 are recessed inward from the inner wall of the rotating sleeve 7, and their positions correspond to the positions of each group of vent holes 9. This ensures that each intake channel 10 remains connected to each group of vent holes 9 when the rotating sleeve 7 rotates relative to the intake pipe 6. Multiple jet holes extending to the outer wall of the rotating sleeve 7 are connected to the intake channels 10. 11. The jet nozzle 11 extends from the air intake channel 10 to the outer wall of the rotating sleeve 7. Multiple nozzles 12 connected to the jet nozzle 11 are fixed to the outer wall of the rotating sleeve 7 by adhesive bonding or bolts. This structure allows gas entering from the air intake pipe 6 to continuously enter the air intake channel 10 through the vent hole 9 during the rotation of the rotating sleeve 7, and then be ejected from the multiple nozzles 12 along the jet nozzle 11. A cleaning brush 13 is provided on the outer wall of the rotating sleeve 7 in the area between adjacent nozzles 12. The cleaning brush 13 contacts the filter screen 4. This structure enables efficient cleaning... When the frame 5 moves vertically to the filter screen 4, the cleaning motor 8 drives the rotating sleeve 7 to rotate, so that the cleaning brush 13 on the rotating sleeve 7 contacts the filter screen 4 protruding from the inner wall of the inverter housing 1, and cleans the dust and impurities clogging it. At the same time, the gas sprayed from the nozzle 12 blows the cleaned dust and impurities toward the outside of the inverter housing 1, preventing the dust and impurities from falling back onto the filter screen 4, making the cleaning of the filter screen 4 more efficient and thorough, increasing the airflow at the heat dissipation hole 2 after long-term use, and ensuring the ventilation and heat dissipation effect of the centralized inverter.

[0025] Preferably, the inner wall of the inverter housing 1 is provided with a guide groove 14. Specifically, the guide groove 14 is composed of two symmetrically arranged L-shaped steels. The L-shaped steels are fixedly connected to the inner wall of the inverter housing 1 by welding or bolts. The cleaning frame 5 is slidably connected in the guide groove 14. Specifically, the cleaning frame 5 includes two sliding seats connected to both ends of the air intake pipe 6. The sliding seats are slidably connected in the guide groove 14. The guide groove 14 is provided with a power component for driving the cleaning frame 5 to slide. This structure uses the guide groove 14 to guide the vertical sliding of the cleaning frame 5, ensuring the stability of the sliding structure of the cleaning frame 5.

[0026] Preferred, refer to Figure 5and Figure 6 The power assembly includes a moving motor 15 and parallel guide rods 16 and screws 17. The moving motor 15 is fixed to the guide groove 14 by welding or bolting, and the screw 17 is fixed to the output shaft of the moving motor 15 by welding or bolting. The moving motor 15 drives the screw 17 to rotate. The screw 17 passes through the cleaning frame 5 and is threadedly connected to it. The guide rod 16 is fixed in the guide groove 14 by welding or bolting, and passes through the cleaning frame 5 and is slidably connected to it. With this structure, when the moving motor 15 drives the screw 17 to rotate, the threaded connection causes the cleaning frame 5 to slide relative to the guide rod 16, thereby allowing the cleaning frame 5 to slide accurately along the guide groove 14, and making the control of the sliding distance and speed of the cleaning frame 5 more accurate.

[0027] Preferably, an air supply hose 18 is connected to the air inlet pipe 6, and an air pump is installed on the air supply hose 18 for supplying air. A vertical clearance groove 19 is provided on the side wall of the guide groove 14. The clearance groove 19 penetrates the side wall of the guide groove 14 and extends vertically. The air supply hose 18 passes through the clearance groove 19 and connects to the air inlet pipe 6. This structure ensures that when the cleaning frame 5 slides vertically, the air supply hose 18 connected to the air inlet pipe 6 moves vertically along the clearance groove 19, thus ensuring real-time air supply to the air inlet pipe 6.

[0028] Preferably, the bottom of the heat dissipation hole 2 is inclined towards the outside of the inverter housing 1. This structure ensures that when dust and impurities blown out of the inverter housing 1 fall into the heat dissipation hole 2, they will not accumulate inside the heat dissipation hole 2, but will slide down along the inclined bottom of the heat dissipation hole 2 towards the outside of the inverter housing 1, thus preventing the accumulated dust and impurities from clogging the filter screen 4 again and improving the cleaning effect of the filter screen 4.

[0029] Preferably, the heat dissipation hole 2 is provided with a heat dissipation grille 20 inside. The heat dissipation grille 20 can prevent impurities such as leaves or plastic bags from entering the heat dissipation hole 2 and avoid clogging the heat dissipation hole 2.

[0030] Preferably, both the rotating sleeve 7 and the output shaft of the cleaning motor 8 are fixed with meshing gears 21 by welding or bolts. This structure allows the rotating sleeve 7 to rotate under the connection of the gears 21 when the cleaning motor 8 is started, making the rotation drive of the rotating sleeve 7 more accurate and stable.

[0031] Working Principle: The structure of this utility model includes a cleaning frame 5 vertically slidably connected to the inner wall of the inverter housing 1. A rotating sleeve 7 is rotatably connected to the cleaning frame 5, and a cleaning brush 13 is provided on the rotating sleeve 7. The cleaning brush 13 contacts the filter screen 4 at the heat dissipation hole 2. With this structure, when the cleaning frame 5 moves vertically to the filter screen 4, the cleaning motor 8 drives the rotating sleeve 7 to rotate, thereby causing the cleaning brush 13 on the rotating sleeve 7 to rotate and clean the filter screen 4, thus removing the dust and impurities clogging the filter screen 4, ensuring the unobstructed flow of the filter screen 4, increasing the airflow at the heat dissipation hole 2 after long-term use, and ensuring heat dissipation efficiency. An air inlet pipe 6 is provided on the cleaning frame 5, and the rotating sleeve 7 is rotatably sleeved on the outside of the air inlet pipe 6. The side wall of the air inlet pipe 6 is provided with multiple communicating vent holes 9, and the inner wall of the rotating sleeve 7 is provided with a rotatably connected vent hole 9. The air intake channel 10 is connected to multiple jet holes 11 extending to the outer wall of the rotating sleeve 7. Each jet hole 11 is equipped with a connected nozzle 12. The cleaning brush 13 is located in the area between adjacent nozzles 12 on the outer wall of the rotating sleeve 7. This structure allows the air entering from the air intake pipe 6 to be continuously ejected through the nozzles 12 on the jet holes 11 when the rotating sleeve 7 rotates, due to the connection between the air vent 9 and the air intake channel 10. When the cleaning brush 13 contacts and cleans the filter screen 4, the nozzles 12 between the cleaning brushes 13 spray air synchronously towards the filter screen 4, blowing the cleaned dust and impurities toward the outside of the inverter housing 1, preventing dust and impurities from falling back onto the filter screen 4. This makes cleaning the filter screen 4 more convenient and thorough, further increasing the airflow after cleaning the filter screen 4 and improving the ventilation and heat dissipation effect.

Claims

1. A high-efficiency heat dissipation device for a centralized inverter, comprising heat dissipation holes (2) disposed on the inverter housing (1), characterized in that: The inverter housing (1) has a fixed frame (3) on its inner wall, and a filter screen (4) for covering the heat dissipation holes (2) is provided inside the fixed frame (3). A cleaning rack (5) is slidably connected vertically on the inner wall of the inverter housing (1). An air inlet pipe (6) is provided on the cleaning rack (5). A rotating sleeve (7) is rotatably fitted on the outside of the air inlet pipe (6). A cleaning motor (8) for driving the rotating sleeve (7) to rotate is provided on the cleaning rack (5). Multiple ventilation holes (9) are provided on the air inlet pipe (6). The inner wall of the rotating sleeve (7) is provided with a plurality of air intake channels (10) that are rotatably connected to the air vents (9). A plurality of jet holes (11) extending to the outer wall of the rotating sleeve (7) are connected to the air intake channels (10). A plurality of nozzles (12) connected to the jet holes (11) are provided on the outer wall of the rotating sleeve (7). A cleaning brush (13) is provided in the area between adjacent nozzles (12) on the outer wall of the rotating sleeve (7). The cleaning brush (13) is in contact with the filter screen (4).

2. The high-efficiency heat dissipation device for a centralized inverter according to claim 1, characterized in that: The inverter housing (1) has a guide groove (14) on its inner wall. The cleaning rack (5) is slidably connected in the guide groove (14) in the vertical direction. The guide groove (14) is provided with a power component for driving the cleaning rack (5) to slide.

3. The high-efficiency heat dissipation device for a centralized inverter according to claim 2, characterized in that: The power assembly includes a moving motor (15) and a guide rod (16) and a screw (17) arranged in parallel. The screw (17) is fixed on the output shaft of the moving motor (15). The screw (17) passes through the cleaning frame (5) and is threadedly connected to it. The guide rod (16) passes through the cleaning frame (5) and is slidably connected to it.

4. The high-efficiency heat dissipation device for a centralized inverter according to claim 2, characterized in that: An air supply hose (18) is connected to the air intake pipe (6). A vertical clearance groove (19) is provided on the side wall of the guide groove (14). The air supply hose (18) passes through the clearance groove (19) and is connected to the air intake pipe (6).

5. The high-efficiency heat dissipation device for a centralized inverter according to claim 1, characterized in that: The bottom of the heat dissipation hole (2) is inclined toward the outside of the inverter housing (1).

6. The high-efficiency heat dissipation device for a centralized inverter according to claim 1, characterized in that: The heat dissipation hole (2) is provided with a heat dissipation grille (20).

7. The high-efficiency heat dissipation device for a centralized inverter according to claim 1, characterized in that: Both the rotating sleeve (7) and the cleaning motor (8) have meshing gears (21) on their output shafts.

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