Photovoltaic inversion device for electric power engineering
By setting up a side cooling mechanism at the chassis of the photovoltaic inverter, air supply below the outside temperature is achieved using a water tank and a fan, the problem of insufficient heat dissipation of the photovoltaic inverter in a high-temperature environment is solved, and efficient heat dissipation and normal operation are achieved.
Patent Information
- Application Number
- CN202421260146.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-04
AI Technical Summary
In the high temperature environment in summer, the original cooling fan of the photovoltaic inverter cannot meet its cooling needs, resulting in an impact on operating efficiency.
A side cooling mechanism is set up at the chassis of the photovoltaic inverter. The water-filled water tank is combined with the U-shaped seat to form a cool area lower than the outside temperature, and a fan is used to introduce air below the outside temperature to supply air and cool down to achieve effective heat dissipation.
Through the use of the side cooling mechanism, efficient heat dissipation of the photovoltaic inverter is achieved, ensuring its normal operation in a high-temperature environment.
Smart Images
Figure CN222547365U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic inverters, in particular to a photovoltaic inverter device used in power engineering. Background Art
[0002] Photovoltaic inverters are inverters that can convert the variable DC voltage generated by photovoltaic (PV) solar panels into AC power at the mains frequency, which can be fed back to the commercial power transmission system or used for off-grid power grids. Photovoltaic inverters are one of the important system balances (BOS) in power engineering 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 protection.
[0003] At present, when photovoltaic inverters are used in photovoltaic systems for power engineering, heat is easily generated at the photovoltaic inverter when the internal components of the photovoltaic inverter are running. The heat dissipation mechanism of the photovoltaic inverter is usually set at the bottom of the chassis of the photovoltaic inverter to discharge the heat inside the photovoltaic inverter. When the photovoltaic inverter is running in a high temperature environment in summer, its original cooling fan often cannot meet the heat dissipation requirements of the photovoltaic inverter, which can easily affect the operating efficiency of the photovoltaic inverter. For this reason, we propose a photovoltaic inverter device for power engineering. Utility Model Content
[0004] The main purpose of the utility model is to provide a photovoltaic inverter device for electric power engineering. A side cooling mechanism is arranged at the chassis of the photovoltaic inverter body. The side cooling mechanism is composed of a water-filled water tank and a U-shaped seat to form a cool area lower than the outside temperature. Then, the air here is introduced into the photovoltaic inverter body by means of a fan for air supply and cooling. The heat in the photovoltaic inverter body is brought out of the heat dissipation groove by the wind force lower than the outside temperature, thereby realizing air supply and heat dissipation at the photovoltaic inverter body, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A photovoltaic inverter device for electric power engineering, comprising a photovoltaic inverter body, the surface of which is provided with a heat dissipation slot located below its own display screen, and a side cooling mechanism, the side cooling mechanism comprising a side window, a plug, an outer panel, a bent connecting pipe, a pipe seat, a fan, a water tank, a U-shaped seat, a V-shaped bottom convex seat and an L-shaped water diversion pipe, a side window for air intake is provided at the side box wall of the photovoltaic inverter body, and a plug is inserted into the window hole of the side window, the side window is provided with a side window for air intake, and a plug is inserted into the window hole of the side window, and the side window is provided with a side window for air intake ... The outer pipe outlet of the insert pipe exposed through the side window is welded to the pipe seat by a bent connecting pipe, and an outer mounting plate is welded above the insert pipe, bolts are screwed between the outer mounting plate and the photovoltaic inverter body, a fan is installed between the pipe seat and the water tank, and a U-shaped seat is welded below the water tank, a V-shaped bottom convex seat extending into the U-shaped seat is convexly provided at the bottom of the water tank, and the seat cavity of the U-shaped seat faces the air inlet of the fan, a bent fixing ring is welded at the upper wall of the water tank, and an L-shaped water diversion pipe is inserted at the bent fixing ring.
[0007] Furthermore, the side window is welded with grille bars arranged at the inner cavity wall away from the insertion tube, and gaps for air flow are reserved between the bars of the grille bars;
[0008] By adopting the above technical solution, the grille bars at the side windows prevent large foreign objects from entering.
[0009] Furthermore, the seat cavity of the V-shaped bottom convex seat is interconnected with the body of the water tank, and the seat plate of the V-shaped bottom convex seat extending into the U-shaped seat protrudes outside with a fin plate;
[0010] By adopting the above technical solution, the water in the water tank can enter the V-shaped bottom convex seat, so that the temperature in the U-shaped seat below the V-shaped bottom convex seat is lower than the outside stable temperature. When the fan takes in air between the V-shaped bottom support seats, the fan can introduce air with a lower stability than the outside to blow towards the pipe seat.
[0011] Furthermore, bolts are screwed between the seat plate above the air inlet of the fan and the water tank, and bolts are screwed between the seat plate above the air outlet of the fan and the pipe seat;
[0012] By adopting the above technical solution, the base plate of the fan can be installed at the pipe base and the water tank respectively by means of bolts.
[0013] Furthermore, the window of the side window is a circular window, and the window diameter of the side window is the same as the diameter of the tube body of the cannula;
[0014] By adopting the above technical solution, the circular window of the side window can be adapted to be inserted into the cannula.
[0015] Furthermore, a seat hole is formed through the seat body of the pipe seat, and the seat hole of the pipe seat is communicated with the bent connecting pipe;
[0016] By adopting the above technical solution, the seat hole of the pipe seat is interconnected with the bent connecting pipe, which facilitates the wind at the fan to enter the pipe seat along the bent connecting pipe.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model provides a side cooling mechanism at the chassis of the photovoltaic inverter body. The side cooling mechanism uses a water-filled water tank and a U-shaped seat to form a cool area lower than the outside temperature. Then, the air here is introduced into the photovoltaic inverter body by a fan to supply air and cool it down. The heat in the photovoltaic inverter body is brought out of the heat dissipation groove by the wind force lower than the outside temperature, thereby realizing air supply and heat dissipation at the photovoltaic inverter body.
[0019] In addition, the side cooling mechanism introduces external wind into the photovoltaic inverter body, which accelerates the air flow in the photovoltaic inverter body, thereby accelerating the heat in the photovoltaic inverter body to dissipate outward along the heat dissipation groove, ensuring efficient heat dissipation at the photovoltaic inverter body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a photovoltaic inverter device used in electric power engineering.
[0021] Figure 2 The utility model is an exploded view of a side cooling mechanism of a photovoltaic inverter device used in electric power engineering.
[0022] In the figure: 1. PV inverter body; 2. heat sink; 3. side cooling mechanism; 4. side window; 5. plug-in pipe; 6. exterior panel; 7. bent connecting pipe; 8. pipe seat; 9. fan; 10. water tank; 11. U-shaped seat; 12. V-shaped bottom convex seat; 13. fin plate; 14. bent fixing ring; 15. L-shaped water pipe; 16. grille bar. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] like Figure 1-2As shown, a photovoltaic inverter device for electric power engineering includes a photovoltaic inverter body 1, a heat dissipation slot 2 located below its own display screen is opened on the surface of the photovoltaic inverter body 1, and a side cooling mechanism 3 is also included. The side cooling mechanism 3 includes a side window 4, a plug 5, an outer panel 6, a bent connecting pipe 7, a pipe seat 8, a fan 9, a water tank 10, a U-shaped seat 11, a V-shaped bottom convex seat 12 and an L-shaped water pipe 15. The photovoltaic inverter body 1 is provided with a side window 4 for air intake at the side box wall, and a plug 5 is inserted into the window hole of the side window 4. The plug 5 is exposed. The outer pipe outlet of the outlet window 4 is welded to the pipe seat 8 by a bent connecting pipe 7, and an outer mounting plate 6 is welded above the insert pipe 5, and bolts are screwed between the outer mounting plate 6 and the photovoltaic inverter body 1, a fan 9 is installed between the pipe seat 8 and the water tank 10, and a U-shaped seat 11 is welded below the water tank 10, a V-shaped bottom convex seat 12 extending into the U-shaped seat 11 is convexly provided at the bottom of the water tank 10, and the seat cavity of the U-shaped seat 11 faces the air inlet of the fan 9, a bent fixing ring 14 is welded at the upper box wall of the water tank 10, and an L-shaped water diversion pipe 15 is inserted at the bent fixing ring 14.
[0025] The side window 4 is welded with grid bars 16 arranged at the inner wall away from the insertion tube 5, and gaps for air flow are reserved between the bars of the grid bars 16;
[0026] By adopting the above technical solution, the grille bars 16 at the side window 4 prevent large foreign objects from entering.
[0027] The seat cavity of the V-shaped bottom convex seat 12 is interconnected with the body of the water tank 10, and the V-shaped bottom convex seat 12 extends into the seat plate of the U-shaped seat 11 and a fin plate 13 is protruded outside;
[0028] By adopting the above technical solution, the water in the water tank 10 can enter the V-shaped bottom boss 12, so that the temperature in the U-shaped seat 11 below the V-shaped bottom boss 12 is lower than the external stable temperature. When the fan 9 takes in air between the V-shaped bottom boss 12, the fan 9 can introduce air with a lower temperature than the external stable temperature to blow towards the pipe seat 8.
[0029] Among them, the base plate above the air inlet of the fan 9 is screwed with bolts to the water tank 10, and the base plate above the air outlet of the fan 9 is screwed with bolts to the pipe seat 8;
[0030] By adopting the above technical solution, the base plate of the fan 9 can be installed at the pipe base 8 and the water tank 10 respectively by means of bolts.
[0031] The window of the side window 4 is a circular window, and the window diameter of the side window 4 is the same as the diameter of the tube body of the cannula 5;
[0032] By adopting the above technical solution, the cannula 5 can be inserted into the circular window of the side window 4.
[0033] The seat body of the pipe seat 8 is provided with a seat hole, and the seat hole of the pipe seat 8 is communicated with the bent connecting pipe 7;
[0034] By adopting the above technical solution, the seat hole of the pipe seat 8 is interconnected with the curved connecting pipe 7 , so that the wind at the fan 9 can enter the pipe seat 8 along the curved connecting pipe 7 .
[0035] It should be noted that the utility model is a photovoltaic inverter device for power engineering, in which a side window 4 of a side cooling mechanism 3 is provided at the chassis of the photovoltaic inverter body 1, and after the plug 5 of the side cooling mechanism 3 is inserted into the side window 4, the outer mounting plate 6 outside the plug 5 is screwed into the chassis of the photovoltaic inverter body 1 through the plate body with bolts, and then the pipe seat 8 connected with the bent connecting pipe 7 on the outside of the plug 5 can be installed on the ground with the fan 9, and at the same time, the air inlet seat of the fan 9 is installed at the water tank 10, and the air inlet of the fan 9 is directed toward the seat cavity of the U-shaped seat 11 below the water tank 10, and then the external controllable water pipe can be clamped at the L-shaped water pipe 15 at the bent fixing ring 14, so that the L-shaped water pipe 15 can regularly inject water into the water tank 10, and the water After the water in the box 10 flows into the V-shaped bottom boss 12, the V-shaped bottom boss 12 is at a deeper water level. With the help of conduction cooling of the V-shaped bottom boss 12 and the fin plate 13, the temperature in the U-shaped seat 11 is relatively low. When the fan 9 is connected to the control end of the photovoltaic inverter body 1 and turned on, the fan 9 introduces air between the V-shaped bottom boss 12 that is lower than the stable air outside and blows it to the pipe seat 8. Then, the wind force with a temperature lower than the outside temperature can enter the photovoltaic inverter body 1 from the bent connecting pipe 7 and the insert pipe 5 along the grid bars 16, so that the heat in the photovoltaic inverter body 1 is taken away by the wind force with a temperature lower than the outside temperature, and then the heat dissipation groove 2 of the photovoltaic inverter body 1 can dissipate the heat to the outside, and the original heat dissipation fan at the bottom of the photovoltaic inverter body 1 can also discharge the heat to the outside.
[0036] It should be noted that the utility model is a photovoltaic inverter device for power engineering. The components in the utility model are all components known to technical personnel in the field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.
[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A photovoltaic inverter device for electric power engineering, comprising a photovoltaic inverter body (1), wherein a heat dissipation slot (2) is provided on the surface of the photovoltaic inverter body (1) and is located below the display screen thereof, and wherein: The photovoltaic inverter body (1) also includes a side cooling mechanism (3), the side cooling mechanism (3) including a side window (4), a plug (5), an outer panel (6), a bent connecting pipe (7), a pipe seat (8), a fan (9), a water tank (10), a U-shaped seat (11), a V-shaped bottom convex seat (12) and an L-shaped water pipe (15). The photovoltaic inverter body (1) is provided with a side window (4) for air intake at the side box wall, and a plug (5) is inserted into the window hole of the side window (4). The plug (5) is exposed from the outer pipe opening of the side window (4) and is welded to the pipe seat (8) by a bent connecting pipe (7), and the plug (5) is connected to the side window (4). ) is welded with an outer panel (6) above the outer panel (6), bolts are screwed between the outer panel (6) and the photovoltaic inverter body (1), a fan (9) is installed between the pipe seat (8) and the water tank (10), and a U-shaped seat (11) is welded below the water tank (10), a V-shaped bottom convex seat (12) extending into the U-shaped seat (11) is convexly arranged at the bottom of the water tank (10), and the seat cavity of the U-shaped seat (11) faces the air inlet of the fan (9), a bending ring (14) is welded at the upper wall of the water tank (10), and an L-shaped water pipe (15) is inserted at the bending ring (14).
2. A photovoltaic inverter device for electric power engineering according to claim 1, characterized in that: The side window (4) is welded with grille bars (16) arranged at the inner cavity wall away from the insertion tube (5), and gaps for air flow are reserved between the bars of the grille bars (16).
3. A photovoltaic inverter device for electric power engineering according to claim 1, characterized in that: The seat cavity of the V-shaped bottom convex seat (12) is interconnected with the body of the water tank (10), and the V-shaped bottom convex seat (12) extends into the seat plate of the U-shaped seat (11) and protrudes with a fin plate (13).
4. A photovoltaic inverter device for electric power engineering according to claim 1, characterized in that: Bolts are screwed between the seat plate above the air inlet of the fan (9) and the water tank (10), and bolts are screwed between the seat plate above the air outlet of the fan (9) and the pipe seat (8).
5. A photovoltaic inverter device for electric power engineering according to claim 1, characterized in that: The window of the side window (4) is a circular window, and the window diameter of the side window (4) is the same as the diameter of the tube body of the cannula (5).
6. A photovoltaic inverter device for electric power engineering according to claim 1, characterized in that: A seat hole is formed through the seat body of the pipe seat (8), and the seat hole of the pipe seat (8) is communicated with the bent connecting pipe (7).