Plateau region photovoltaic tolerance inverter
By introducing metal heat conduction plates, water-cooled heat dissipation systems and semiconductor refrigeration components into photovoltaic inverters, the heat dissipation system is optimized, which solves the problem of heat dissipation difficulties of inverters in plateau areas, achieves efficient and rapid heat dissipation effects, and ensures the normal operation of the equipment.
Patent Information
- Application Number
- CN202422606819.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-28
AI Technical Summary
Existing photovoltaic inverters have low air pressure and thin air in plateau areas, resulting in low air cooling efficiency. The heat dissipation efficiency of the radiator of the liquid cooling system is also affected, making it difficult for the inverter to dissipate heat effectively, which may lead to overheating. The workload needs to be reduced to avoid overheating.
It uses a metal heat-conducting plate and heat-dissipating fins combined with a water-cooling system, cooperates with a circulating pump and fan for heat transfer, combines with semiconductor refrigeration components for rapid cooling, and uses fans to accelerate airflow heat exchange to optimize the heat dissipation system.
It achieves efficient and rapid heat dissipation, ensuring the normal operation of the inverter in plateau areas without reducing the workload, avoiding overheating and ensuring equipment stability.
Smart Images
Figure CN223391264U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of photovoltaic components, and specifically to a photovoltaic inverter for plateau areas. Background Art
[0002] A photovoltaic inverter is a device used to convert the direct current (DC) generated by photovoltaic panels into alternating current (AC). Inverters typically use high-frequency DC / AC conversion technology. When using an inverter, the photovoltaic panels and the inverter body are connected together via connecting wires. This allows the inverter to convert the DC generated by the photovoltaic panels into AC.
[0003] Existing photovoltaic inverters usually achieve internal heat dissipation through air cooling or liquid cooling. However, when using photovoltaic inverters in plateau areas, the air pressure in plateau areas is lower than that in plains. The lower air pressure and air density in plateaus weaken the air convection effect, making it more difficult for the electronic components inside the inverter to dissipate heat through the air, which may cause overheating. The thin air leads to low heat dissipation efficiency of air cooling. Although the liquid cooling system can quickly remove the heat generated by the inverter through flowing coolant, the heat dissipation efficiency of the radiator of the liquid cooling system is still affected. Even if the coolant can efficiently remove the heat from the inverter, the radiator cannot effectively dissipate the heat through the air, affecting the overall heat dissipation efficiency, forcing the inverter to reduce its workload to avoid overheating. Utility Model Content
[0004] The purpose of this application is to provide a photovoltaic resistant inverter for plateau areas to solve the technical problems raised in the above background technology.
[0005] To achieve the above objectives, the present application provides the following technical solution: a photovoltaic inverter for plateau regions, comprising a housing, a cavity defined within the housing, and a door rotatably connected to the cavity opening; a mounting frame and a bracket are fixedly connected to the inner wall of the cavity, and an inverter unit and a water-cooling heat dissipation unit are fixedly connected to one side of the mounting frame and the bracket, respectively;
[0006] The water-cooled heat dissipation part includes a metal heat conducting plate fixedly connected to one side of the bracket, a heat dissipation fin 1 fixedly connected to one side of the metal heat conducting plate, a flow channel opened inside the metal heat conducting plate, a metal pipe with one end fixedly connected to one side of the metal heat conducting plate and connected to the flow channel, and one side of the metal heat conducting plate is in contact with one side of the inverter part. A circulation pump is fixedly connected to the top of the shell, and the input end of the circulation pump is connected to the other end of the metal pipe, the output end of the circulation pump is connected to the flow channel inside the metal heat conducting plate, and a fan 1 with an air outlet end facing the heat dissipation fin 1 is fixedly connected to the bottom of the shell.
[0007] Preferably, the upper end of the shell is connected to a rapid cooling part, and the rapid cooling part includes a semiconductor refrigeration part fixedly connected to the upper part of the shell, a plurality of heat dissipation fins fixedly connected to the hot end of the semiconductor refrigeration part, a heat conductive block fixedly connected to the cold end of the semiconductor refrigeration part, and two fans fixedly connected to the upper end of the shell, and the heat conductive block is sleeved on the outside of the metal pipe.
[0008] Preferably, the air outlet end of the second fan faces the second heat dissipation fin and the metal pipe, and the air outlet end of the second fan is connected to two conical air guide covers.
[0009] Preferably, a plurality of exhaust chute connected to the cavity are symmetrically provided on both sides of the shell, a filter is connected to one side of the air inlet end of the fan, and a plurality of cable outlets are provided at the lower end of the shell.
[0010] Preferably, the lower end of the shell is connected to a cleaning part, and the cleaning part includes two groups of vertical plates symmetrically fixed to the lower end of the shell, a screw rod rotatably connected between one group of vertical plates, a guide rod fixed between the other group of vertical plates, a plate body screwed to the outside of the screw rod and movably sleeved on the outside of the guide rod, a brush roller rotatably connected to the inside of the plate body, and a motor fixed to the lower end of the shell, and the output shaft of the motor passes through the vertical plate and is fixed to one end of the screw rod.
[0011] Preferably, a tooth key is further provided at the lower end of the shell, one end of the brush roller is rotatably connected to the inner wall of the plate body, and the other end of the brush roller is fixedly connected to a gear meshing with the tooth key, and one side of the gear is rotatably connected to the inner wall of the plate body.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1) The present application adopts a design of a metal heat conducting plate and heat dissipating fins 1, which increases the heat dissipation area of the metal heat conducting plate, thereby facilitating the heat dissipation of the metal heat conducting plate. The heat dissipation fins 1 and the metal heat conducting plate can achieve initial heat dissipation, and then the circulating pump drives the coolant to circulate in the metal pipe and the internal flow channel of the metal heat conducting plate, taking away the heat of the metal heat conducting plate to achieve secondary heat dissipation. Finally, the fan 1 accelerates the flow of gas inside the shell to achieve further heat dissipation of the heat dissipating fins 1 and the metal heat conducting plate, thereby optimizing the heat dissipation effect of the entire heat dissipation system of the inverter and achieving faster and more efficient heat dissipation.
[0014] 2) The present application is provided with a rapid cooling unit, which can achieve rapid cooling of the coolant in the metal pipe through the semiconductor refrigeration unit, so that the cooled coolant can quickly cool the metal heat conduction plate and the inverter unit. At the same time, the conical wind guide cover can accelerate the wind discharged from the second fan. Faster airflow means more convection heat transfer capacity, which helps to transfer the heat accumulated on the heat pipe to the air faster. The coolant and metal pipe after cooling by the semiconductor refrigeration unit are subjected to heat dissipation and cooling treatment again to ensure that the coolant temperature in the metal pipe can drop rapidly in a short time, thereby ensuring the normal operation of the inverter and preventing the inverter from overheating without reducing the workload. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of this application;
[0016] Figure 2 This is a schematic diagram of the decomposition structure of this application;
[0017] Figure 3 This is a structural diagram of the rapid cooling unit of this application;
[0018] Figure 4 This is a schematic diagram of the cleaning department structure of this application.
[0019] In the figure: 1. Shell; 11. Exhaust chute; 12. Cavity; 13. Mounting frame; 14. Inverter; 15. Bracket; 16. Fan 1; 17. Cable outlet; 2. Door; 3. Water-cooled heat dissipation unit; 31. Heat dissipation fin 1; 32. Metal pipe; 33. Circulation pump; 34. Metal heat conduction plate; 4. Rapid cooling unit; 41. Fan 2; 42. Heat dissipation fin 2; 43. Semiconductor refrigeration unit; 44. Heat conduction block; 45. Conical air guide cover; 5. Cleaning unit; 51. Vertical plate; 52. Screw; 53. Motor; 54. Plate; 55. Brush roller; 56. Gear; 57. Key. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0021] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0022] Example:
[0023] See also Figure 1-4 The present application provides a technical solution: a photovoltaic inverter for plateau areas, comprising a housing 1, a cavity 12 defined within the housing 1, and a door 2 rotatably connected to the opening of the cavity 12. A mounting bracket 13 and a support 15 are fixedly attached to the inner wall of the cavity 12, and an inverter unit 14 (composed of an inverter circuit, a filter, a control system, a protection circuit, etc.; the inverter technology is a mature existing technology, and its composition and principle are not further described here) and a water-cooling heat dissipation unit 3 are respectively fixedly attached to one side of the mounting bracket 13 and the support 15.
[0024] The water-cooled heat dissipation part 3 includes a metal heat conducting plate 34 fixed to one side of the bracket 15, a heat dissipation fin 31 fixed to one side of the metal heat conducting plate 34, a flow channel opened inside the metal heat conducting plate 34, a metal pipe 32 one end of which is fixed to one side of the metal heat conducting plate 34 and connected to the flow channel, and one side of the metal heat conducting plate 34 is in contact with one side of the inverter part 14. A circulation pump 33 is fixed to the top of the shell 1, and the input end of the circulation pump 33 is connected to the other end of the metal pipe 32, and the output end of the circulation pump 33 is connected to the flow channel inside the metal heat conducting plate 34. A fan 16 with its air outlet facing the heat dissipation fin 31 is fixed to the bottom of the shell 1.
[0025] The shell 1 is symmetrically provided with a plurality of exhaust chute 11 connected to the cavity 12 on both sides. A filter is connected to one side of the air inlet end of the fan 16. The lower end of the shell 1 is provided with a plurality of cable outlets 17.
[0026] By setting up the above scheme, the heat generated by the operation of the inverter part 14 is transferred to the metal heat conducting plate 34, and the metal heat conducting plate 34 and the heat dissipation fin 31 can dissipate heat. The external air is drawn into the cavity 12 through the fan 16. The external air enters the cavity 12 and is then discharged from the exhaust chute 11, thereby realizing the rapid flow of gas inside the cavity 12, thereby taking away the heat of the inverter part 14, the metal heat conducting plate 34 and the heat dissipation fin 31. Secondly, the operation of the circulating pump 33 can drive the coolant to circulate in the flow channel inside the metal pipe 32 and the metal heat conducting plate 34, taking away the heat of the metal heat conducting plate 34 to achieve secondary heat dissipation.
[0027] See also Figure 2-Figure 3The upper end of the shell 1 is connected to a rapid cooling and cooling part 4, and the rapid cooling and cooling part 4 includes a semiconductor refrigeration part 43 fixedly connected to the upper part of the shell 1, a plurality of heat dissipation fins 42 fixedly connected to the hot end of the semiconductor refrigeration part 43, a heat conduction block 44 fixedly connected to the cold end of the semiconductor refrigeration part 43, and a fan 41 fixedly connected to the upper end of the shell 1, and the heat conduction block 44 is sleeved on the outside of the metal pipe 32.
[0028] The air outlet end of the second fan 41 faces the second heat dissipation fin 42 and the metal pipe 32 , and the air outlet end of the second fan 41 is connected to two conical air guide covers 45 .
[0029] By setting up the above scheme, the semiconductor refrigeration part 43 (semiconductor refrigeration plate, which is a mature existing technology and will not be described here) can quickly cool the coolant in the metal pipe 32, so that the cooled coolant can quickly cool the metal heat conducting plate 34 and the inverter part 14. The conical wind guide cover 45 can accelerate the wind discharged from the fan 2 41. Faster airflow means more convective heat exchange capacity, which helps to transfer the heat accumulated on the metal pipe 32 and the heat dissipation fin 2 42 to the air faster. The coolant and the metal pipe 32 that have been cooled by the semiconductor refrigeration part 43 are subjected to heat dissipation and cooling treatment again to ensure that the coolant temperature in the metal pipe 32 can drop rapidly in a short time, ensuring the normal operation of the inverter and preventing the inverter from overheating without reducing the workload.
[0030] See also Figure 4 The lower end of the shell 1 is connected to a cleaning part 5, and the cleaning part 5 includes two groups of vertical plates 51 symmetrically fixed to the lower end of the shell 1, a screw rod 52 rotatably connected between one group of vertical plates 51, a guide rod fixed between the other group of vertical plates 51, a plate body 54 screwed to the outside of the screw rod 52 and movably sleeved on the outside of the guide rod, a brush roller 55 rotatably connected to the inside of the plate body 54, and a motor 53 fixed to the lower end of the shell 1, and the output shaft of the motor 53 passes through the vertical plate 51 and is fixed to one end of the screw rod 52.
[0031] A tooth key 57 is further provided at the lower end of the shell 1. One end of the brush roller 55 is rotatably connected to the inner wall of the plate body 54, and the other end of the brush roller 55 is fixedly connected to a gear 56 meshing with the tooth key 57. One side of the gear 56 is rotatably connected to the inner wall of the plate body 54.
[0032] By setting up the above scheme, the motor 53 drives the screw rod 52 to rotate, the rotation of the screw rod 52 drives the plate body 54 to move, the movement of the plate body 54 drives the brush roller 55 to move and clean the filter screen on one side of the fan 16, brushing off the dust on the filter screen, and while the plate body 54 moves, the gear 56 can contact the tooth key 57, thereby driving the gear 56 and the brush roller 55 to rotate, improving the cleaning effect, and removing the dust on the filter screen faster and more thoroughly.
[0033] The above shows and describes the basic principles, main features and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.
[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic inverter for plateau areas, comprising a housing (1), a cavity (12) provided inside the housing (1), and a door (2) rotatably connected to the opening of the cavity (12), characterized in that: A mounting frame (13) and a bracket (15) are fixedly connected to the inner wall of the cavity (12), and an inverter unit (14) and a water-cooling heat dissipation unit (3) are fixedly connected to one side of the mounting frame (13) and the bracket (15). The water-cooled heat dissipation part (3) includes a metal heat conducting plate (34) fixedly connected to one side of the bracket (15), a heat dissipation fin (31) fixedly connected to one side of the metal heat conducting plate (34), a flow channel opened inside the metal heat conducting plate (34), a metal pipe (32) one end of which is fixedly connected to one side of the metal heat conducting plate (34) and connected to the flow channel, and one side of the metal heat conducting plate (34) is in contact with one side of the inverter part (14), a circulation pump (33) is fixedly connected to the top of the shell (1), and the input end of the circulation pump (33) is connected to the other end of the metal pipe (32), and the output end of the circulation pump (33) is connected to the flow channel inside the metal heat conducting plate (34), and a fan (16) with an air outlet facing the heat dissipation fin (31) is fixedly connected to the bottom of the shell (1).
2. The photovoltaic inverter for plateau areas according to claim 1, characterized in that: The upper end of the shell (1) is connected to a rapid cooling unit (4), and the rapid cooling unit (4) comprises a semiconductor refrigeration unit (43) fixedly connected to the upper part of the shell (1), a plurality of heat dissipation fins (42) fixedly connected to the hot end of the semiconductor refrigeration unit (43), a heat conduction block (44) fixedly connected to the cold end of the semiconductor refrigeration unit (43), and a fan (41) fixedly connected to the upper end of the shell (1), wherein the heat conduction block (44) is sleeved on the outside of the metal pipe (32).
3. The photovoltaic inverter for plateau areas according to claim 2, characterized in that: The air outlet end of the second fan (41) faces the second heat dissipation fin (42) and the metal pipe (32), and the air outlet end of the second fan (41) is connected to two conical air guide covers (45).
4. The photovoltaic inverter for plateau areas according to claim 3, characterized in that: A plurality of exhaust chute (11) connected to the cavity (12) is symmetrically provided on both sides of the shell (1), a filter is connected to one side of the air inlet end of the fan (16), and a plurality of cable outlets (17) are provided at the lower end of the shell (1).
5. The photovoltaic inverter for plateau areas according to claim 4, characterized in that: The lower end of the shell (1) is connected to a cleaning part (5), and the cleaning part (5) comprises two groups of vertical plates (51) symmetrically fixed to the lower end of the shell (1), a screw rod (52) rotatably connected between one group of vertical plates (51), a guide rod fixed between the other group of vertical plates (51), a plate body (54) screwed to the outside of the screw rod (52) and movably sleeved on the outside of the guide rod, a brush roller (55) rotatably connected to the inside of the plate body (54), and a motor (53) fixed to the lower end of the shell (1), wherein the output shaft of the motor (53) passes through the vertical plates (51) and is fixed to one end of the screw rod (52).
6. The photovoltaic inverter for plateau areas according to claim 5, characterized in that: The lower end of the housing (1) is also provided with a tooth key (57), one end of the brush roller (55) is rotatably connected to the inner wall of the plate body (54), and the other end of the brush roller (55) is fixedly connected to a gear (56) meshing with the tooth key (57), and one side of the gear (56) is rotatably connected to the inner wall of the plate body (54).