Photovoltaic power station inverter box

Abstract

The utility model relates to the technical field of photovoltaic power stations, in particular to a photovoltaic power station inverter box, which comprises a base, an inverter box body and a cushion block, the inverter box body is fixedly connected above the base, an inverter box rainproof structure is arranged on the outer side of the inverter box body, the inverter box rainproof structure comprises a vertical rod, a positioning block and a splash-proof plate, and the vertical rod is fixedly connected with the cushion block. The positioning block is fixedly connected to the top end of the inverter box body, and the top end of the positioning block is movably connected with a rotating shaft. According to the photovoltaic power station inverter box, the rain shelter is made of an aluminum alloy frame material and is made of an aluminum alloy material which is not easy to rust and is not easy to immerse in rainwater, and the rain shelter is laid at a certain gradient from the middle positioning block to the two sides, so that the rain shelter has the effect of discharging falling rainwater out of the two sides; a dry and ventilated working environment is provided for an inverter in the inverter box body through various rain-shielding, partition and moisture-proof structures, and the service life of the photovoltaic power station inverter box is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power stations, in particular to an inverter box for a photovoltaic power station. Background Art

[0002] Photovoltaic power station refers to a photovoltaic power generation system that uses solar energy and special materials such as crystalline silicon panels, inverters and other electronic components to connect to the power grid and transmit electricity to the power grid. The inverter is a converter that converts DC power into constant frequency and voltage or frequency and voltage alternating current. It consists of an inverter bridge, control logic and filter circuit. The inverter is an important component of a photovoltaic power station. The inverter is usually placed in an inverter box, which protects it.

[0003] For example, the authorization announcement number "CN215817945U" is named a photovoltaic power station inverter box. Although it is installed and disassembled with fixed bolts, it has a certain flexibility in use. At the same time, the heat dissipation component can cope with the cooling needs in various emergency situations. The operation method itself is also relatively simple, which greatly enhances the safety of the inverter box. However, the existing photovoltaic power station inverter box needs to be set up in a position not far from the photovoltaic power generation equipment. This leads to the photovoltaic power station inverter box basically needing to be directly set up in the outdoor environment. A certain number of inverters are installed inside the photovoltaic power station inverter box. The working conditions of the inverter have relatively high requirements on temperature and humidity. The photovoltaic power station inverter box set up outdoors is prone to rainy weather. Rainwater will easily remain on the top of the inverter box with a flat-top structure, which will easily rust the outer shell of the inverter box. At the same time, the dripping rainwater will easily splash and wet the bottom of the inverter box. Because the internal circuit equipment of the photovoltaic power station inverter box is precise and important, the inverter box with poor rainproof performance will have a relatively short service life.

[0004] At the same time, the existing photovoltaic power station inverter box adopts the method of directly fixing multiple inverters inside the photovoltaic power station inverter box for use. Since the operating personnel need to inspect and maintain the inverter box at work every day, the reserved space around the inverter inside the existing inverter box is small, and the space provided for maintenance personnel to inspect is also more effective. In addition, the inverter will generate a high temperature when working, which requires maintenance personnel to complete the operation in a high-temperature and small space, reducing the actual practicality of the photovoltaic power station inverter box. Utility Model Content

[0005] The utility model aims to solve the problems of short service life and poor practicability of the photovoltaic power station inverter box, and proposes a photovoltaic power station inverter box.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic power station inverter box, comprising a base, an inverter box body and a cushion block, the inverter box body being fixedly connected to the top of the base, an inverter box rainproof structure being provided on the outside of the inverter box body, the inverter box rainproof structure comprising a vertical pole, a positioning block and a splash plate, the positioning block being fixedly connected to the top of the inverter box body, the top of the positioning block being movably connected to a rotating shaft, two rain shields being rotatably connected to both sides of the rotating shaft, a plurality of the vertical poles being fixedly installed on the top of the base, the tops of the plurality of vertical poles being movably connected to the rain shield, and two splash plates being fixedly installed on both sides of the outer wall of the base.

[0007] Preferably, an inverter sliding removal structure is provided on the inner side of the inverter box body;

[0008] The inverter sliding removal structure includes a limit plate, a connecting column and a mounting frame;

[0009] The two limit plates are fixedly installed on the inner wall of the inverter box body, the inner sides of the two limit plates are slidably connected with multiple pulleys, the multiple connecting columns are movably connected to the outer sides of the pulleys, the installation frame is fixedly installed on the inner sides of the multiple connecting columns, the inner wall of the installation frame is fixedly connected with a partition plate, and the outer wall of the installation frame is fixedly provided with multiple reserved holes.

[0010] Preferably, the front end of the inverter box body is movably connected with a box door, the front end of the installation frame is slidably connected to the inner side of the inverter box body, and the front end of the installation frame is arranged opposite to the box door.

[0011] Preferably, a moisture-proof layer is fixedly installed on the top of the base, the inner side of the moisture-proof layer is fixedly connected to the bottom end of the inverter box body, and a plurality of cushion blocks are fixedly installed on the bottom end of the base.

[0012] Preferably, an inverter box ventilation and heat dissipation structure is provided inside the base;

[0013] The inverter box ventilation and heat dissipation structure includes an air inlet, a filter and an exhaust hole;

[0014] The air inlet is fixedly opened on the outer wall of the base, a filter is fixedly installed on the inner top of the air inlet, an air supply chamber is fixedly connected above the filter, a support frame is fixedly installed on the inner wall of the air supply chamber, a plurality of cooling fans are fixedly installed on the inner side of the support frame, and the exhaust hole is fixedly opened on the inner top of the inverter box body.

[0015] Preferably, the ends of the plurality of heat dissipation fans are arranged opposite to the air supply cavity, the end of the air supply cavity is arranged opposite to the bottom end of the installation frame, and the top end of the installation frame is arranged opposite to the inner side of the exhaust hole.

[0016] The utility model proposes an inverter box for a photovoltaic power station, which has the beneficial effects of: the rain shield is made of an aluminum alloy frame material, which is not easy to rust and not easy to be immersed in rainwater. The rain shield is opened from a middle positioning block and laid with a certain slope to both sides, so that the rain shield can discharge the falling rainwater on both sides. Through a variety of rain-proof, partition and moisture-proof structures, a dry and ventilated working environment is provided for the inverter inside the inverter box body, thereby improving the service life of the inverter box of the photovoltaic power station.

[0017] The two ends of the installation frame are arranged relative to each other through multiple connecting columns and limit plates. When the operator needs to inspect the photovoltaic power station inverter, he can open the box door and then pull the installation frame outward. The two ends of the installation frame will be driven out by the rolling action of the pulley and the limit plate. In this way, the installation frame will take the inverter equipment out of the inverter box body, which increases the maintenance space and reduces the interference of high temperature, thereby improving the practicality of the photovoltaic power station inverter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0020] Figure 3 for Figure 1 A schematic diagram of a right side view of FIG.

[0021] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0022] Figure 5 for Figure 2 Enlarged cross-sectional view of part B in the middle;

[0023] Figure 6 for Figure 2 Enlarged cross-sectional view of part C in the middle.

[0024] In the figure: 1. base, 2. inverter box body, 3. cushion block, 4. inverter box rainproof structure, 41. upright pole, 42. rain shield, 43. positioning block, 44. rotating shaft, 45. splash plate, 5. inverter sliding removal structure, 51. limit plate, 52. pulley, 53. connecting column, 54. installation frame, 55. partition plate, 56. reserved hole, 6. inverter box ventilation and heat dissipation structure, 61. air inlet, 62. filter, 63. support frame, 64. heat dissipation fan, 65. air supply cavity, 66. exhaust hole, 7. moisture-proof layer, 8. box door. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] See also Figure 1-6 A photovoltaic power station inverter box includes a base 1, an inverter box body 2 and a cushion block 3. The inverter box body 2 is fixedly connected to the top of the base 1. The outer side of the inverter box body 2 is provided with an inverter box rainproof structure 4. The inverter box rainproof structure 4 includes a vertical pole 41, a positioning block 43 and a splash plate 45. The positioning block 43 is fixedly connected to the top of the inverter box body 2. The top of the positioning block 43 is movably connected to a rotating shaft 44. Two sides of the rotating shaft 44 are rotatably connected to two rain shelters 42. A plurality of vertical poles 41 are fixed to the top of the inverter box body 2. Fixedly installed at the top of the base 1, the vertical pole 41 is made of stainless steel metal material, which can be vertically erected above the base 1 to support the rain shelter 42. The rain shelter 42 is made of aluminum alloy frame material, which is not easy to rust and not easy to be immersed in rainwater. The rain shelter 42 is opened from the middle positioning block 43 to both sides with a certain slope, so that the rain shelter 42 can discharge the falling rainwater on both sides. The tops of multiple vertical poles 41 are movably connected to the rain shelter 42;

[0027] Two splash plates 45 are fixedly installed on both sides of the outer wall of the base 1. The splash plates 45 are made of PC board material. The splash plates 45 are obliquely set on both sides of the base 1, so that the water splashed by raindrops will be blocked by the splash plates 45, which is not easy to corrode the inverter box. A moisture-proof layer 7 is fixedly installed on the top of the base 1. The moisture-proof layer 7 adopts a layer of waterproof mortar material laid on the top of the base 1. The moisture-proof layer 7 is used to separate the contact between the inverter box body 2 and the bottom base 1, thereby reducing the situation where moisture invades the inverter box body 2. The inner side of the moisture-proof layer 7 is fixedly connected to the bottom end of the inverter box body 2. A plurality of pads 3 are fixedly installed on the bottom end of the base 1. The pads 3 lift the base 1 away from the ground to slow down the corrosion of the inverter box body 2 by ground water.

[0028] The vertical pole 41 is made of stainless steel metal material and can be vertically erected above the base 1 to support the rain shelter 42. The rain shelter 42 is made of aluminum alloy frame material, which is not easy to rust and not easy to be immersed in rainwater. The rain shelter 42 is opened from the middle positioning block 43 and is laid with a certain slope on both sides. In this way, the rain shelter 42 will have the effect of draining the falling rainwater on both sides. The moisture-proof layer 7 adopts a layer of waterproof mortar material laid on the top of the base 1. The moisture-proof layer 7 is used to separate the contact between the inverter box body 2 and the bottom base 1, thereby reducing the intrusion of moisture into the inverter box body 2. The pad 3 lifts the base 1 away from the ground to slow down the corrosion of the inverter box body 2 caused by ground water. Through a variety of rain-proof, partition and moisture-proof structures, a dry and ventilated working environment is provided for the inverter inside the inverter box body 2, thereby improving the service life of the inverter box of the photovoltaic power station.

[0029] See also Figure 1-6The inverter box body 2 is provided with an inverter sliding removal structure 5, and the inverter sliding removal structure 5 includes a limit plate 51, a connecting column 53 and a mounting frame 54. The two limit plates 51 are fixedly mounted on the inner wall of the inverter box body 2. The inner sides of the two limit plates 51 are slidably connected with a plurality of pulleys 52. A plurality of connecting columns 53 are movably connected to the outer sides of the pulleys 52. The mounting frame 54 is fixedly mounted on the inner sides of the plurality of connecting columns 53. The inner wall of the mounting frame 54 is fixedly connected with a partition plate 55. The mounting frame 54 is used to support a plurality of partition plates 55. The partition plates 55 can be mounted with inverter equipment through the rear reserved holes 56. The two ends of the mounting frame 54 are connected by a plurality of The connecting column 53 is arranged opposite to the limit plate 51. When the operator needs to inspect the photovoltaic power station inverter, the box door 8 can be opened, and then the installation frame 54 can be pulled out. The two ends of the installation frame 54 will be driven and moved out by the rolling action of the pulley 52 and the limit plate 51, so that the installation frame 54 will take the inverter equipment out of the inverter box body 2, and the maintenance space is larger and the interference of high temperature is reduced. The outer wall of the installation frame 54 is fixedly provided with a plurality of reserved holes 56. The front end of the inverter box body 2 is movably connected with the box door 8. The front end of the installation frame 54 is slidably connected to the inner side of the inverter box body 2, and the front end of the installation frame 54 is arranged opposite to the box door 8.

[0030] The installation frame 54 is used to support multiple partition plates 55. The inverter equipment can be installed on the partition plates 55 through the reserved holes 56 on the rear side. The two ends of the installation frame 54 are arranged relative to the limit plates 51 through multiple connecting columns 53. When the operator needs to inspect the photovoltaic power station inverter, the box door 8 can be opened, and then the installation frame 54 can be pulled out. The two ends of the installation frame 54 will be driven out by the rolling action of the pulley 52 and the limit plate 51. In this way, the installation frame 54 will take the inverter equipment out of the inverter box body 2, and the maintenance space is larger, which also reduces the interference of high temperature, thereby improving the practicality of the photovoltaic power station inverter box.

[0031] See also Figure 1-6The base 1 is provided with an inverter box ventilation and heat dissipation structure 6 inside. The inverter box ventilation and heat dissipation structure 6 includes an air inlet 61, a filter 62 and an exhaust hole 66. The air inlet 61 is fixedly opened on the outer wall of the base 1. A filter 62 is fixedly installed on the top of the air inlet 61. The filter 62 is made of an activated carbon adsorption layer with a certain mesh. The air inlet 61 is used to send external air into the air supply cavity 65. The air supply cavity 65 is fixedly connected above the filter 62. A support frame 63 is fixedly installed on the inner wall of the air supply cavity 65. A plurality of heat dissipation fans 64 are fixedly installed on the inner side of the support frame 63. The heat dissipation fan 64 is connected to the power supply to start the heat dissipation. The hot air blower 64 and the heat dissipation blower 64 will rotate to draw in external air along the air inlet 61, and after being filtered by the filter 62 for dust removal, the air is transported to the inverter box body 2 for heat dissipation. The air in the inverter box body 2 is discharged from the top exhaust hole 66 with the heat generated by the operation of the inverter equipment. The above reciprocating operations can achieve efficient heat dissipation function. The exhaust hole 66 is fixedly opened at the inner top of the inverter box body 2, and the ends of the multiple heat dissipation blowers 64 are arranged opposite to the air supply cavity 65, and the end of the air supply cavity 65 is arranged opposite to the bottom end of the mounting frame 54, and the top end of the mounting frame 54 is arranged opposite to the inner side of the exhaust hole 66.

[0032] Working principle:

[0033] Inverter boxes in photovoltaic power stations are used to convert DC power into constant frequency and constant voltage or frequency and voltage adjustable AC power:

[0034] Outdoor rainproof structure of photovoltaic power station inverter box:

[0035] The vertical pole 41 is made of stainless steel metal material and can be vertically erected above the base 1 to support the rain shelter 42. The rain shelter 42 is made of aluminum alloy frame material, which is not easy to rust and not easy to be immersed in rainwater. The rain shelter 42 is opened from the middle positioning block 43 and laid with a certain slope on both sides, so that the rain shelter 42 can discharge the falling rainwater on both sides. The moisture-proof layer 7 adopts a layer of waterproof mortar material laid on the top of the base 1. The moisture-proof layer 7 is used to separate the contact between the inverter box body 2 and the bottom base 1, thereby reducing the situation where moisture invades the inverter box body 2. The cushion block 3 lifts the base 1 away from the ground to slow down the corrosion of the inverter box body 2 by the ground water.

[0036] The inverter box of the photovoltaic power station can be pulled out for easy maintenance.

[0037] The mounting frame 54 is used to support a plurality of partition plates 55. The partition plates 55 can be provided with inverter equipment through the rear reserved holes 56. The two ends of the mounting frame 54 are arranged relative to the limit plates 51 through a plurality of connecting columns 53. When the operator needs to inspect the photovoltaic power station inverter, the box door 8 can be opened, and then the mounting frame 54 can be pulled out. The two ends of the mounting frame 54 will be driven out by the rolling action of the pulley 52 and the limit plates 51. In this way, the mounting frame 54 will take the inverter equipment out of the inverter box body 2, and the maintenance space is larger and the interference of high temperature is reduced.

[0038] Photovoltaic power station inverter box pull-out internal heat dissipation and ventilation structure:

[0039] The air inlet 61 is used to send external air into the air supply chamber 65. The air supply chamber 65 is fixedly connected above the filter 62. A support frame 63 is fixedly installed on the inner wall of the air supply chamber 65. A plurality of heat dissipation fans 64 are fixedly installed on the inner side of the support frame 63. The heat dissipation fans 64 are started by connecting the power supply. The heat dissipation fans 64 will rotate to suck in external air along the air inlet 61. After being dust-filtered by the filter 62, the air is transported to the inverter box body 2 for heat dissipation. The air in the inverter box body 2 is discharged from the top exhaust hole 66 with the heat generated by the inverter equipment. The above reciprocating operation can achieve efficient heat dissipation function.

[0040] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A photovoltaic power station inverter box, comprising a base (1), an inverter box body (2) and a cushion block (3), characterized in that: The inverter box body (2) is fixedly connected to the top of the base (1); an inverter box rainproof structure (4) is provided on the outer side of the inverter box body (2); the inverter box rainproof structure (4) comprises a vertical pole (41), a positioning block (43) and a splash plate (45); the positioning block (43) is fixedly connected to the top of the inverter box body (2); the top of the positioning block (43) is movably connected to a rotating shaft (44); two sides of the rotating shaft (44) are rotatably connected to two rain shields (42); a plurality of vertical poles (41) are fixedly mounted on the top of the base (1); the tops of the plurality of vertical poles (41) are movably connected to the rain shield (42); and the two splash plates (45) are fixedly mounted on the two sides of the outer wall of the base (1).

2. A photovoltaic power station inverter box according to claim 1, characterized in that: An inverter sliding removal structure (5) is provided on the inner side of the inverter box body (2); The inverter sliding removal structure (5) comprises a limiting plate (51), a connecting column (53) and a mounting frame (54); The two limit plates (51) are fixedly mounted on the inner wall of the inverter box body (2); the inner sides of the two limit plates (51) are slidably connected to a plurality of pulleys (52); the plurality of connecting columns (53) are movably connected to the outer sides of the pulleys (52); the installation frame (54) is fixedly mounted on the inner sides of the plurality of connecting columns (53); the inner wall of the installation frame (54) is fixedly connected to a partition plate (55); and the outer wall of the installation frame (54) is fixedly provided with a plurality of reserved holes (56).

3. A photovoltaic power station inverter box according to claim 2, characterized in that: The front end of the inverter box body (2) is movably connected to a box door (8), the front end of the installation frame (54) is slidably connected to the inner side of the inverter box body (2), and the front end of the installation frame (54) is arranged opposite to the box door (8).

4. The photovoltaic power station inverter box according to claim 1, characterized in that: A moisture-proof layer (7) is fixedly mounted on the top of the base (1), the inner side of the moisture-proof layer (7) is fixedly connected to the bottom of the inverter box body (2), and a plurality of cushion blocks (3) are fixedly mounted on the bottom of the base (1).

5. The photovoltaic power station inverter box according to claim 3, characterized in that: An inverter box ventilation and heat dissipation structure (6) is provided inside the base (1); The inverter box ventilation and heat dissipation structure (6) comprises an air inlet (61), a filter (62) and an air outlet (66); The air inlet (61) is fixedly provided on the outer wall of the base (1); a filter screen (62) is fixedly installed on the inner top of the air inlet (61); an air supply chamber (65) is fixedly connected above the filter screen (62); a support frame (63) is fixedly installed on the inner wall of the air supply chamber (65); a plurality of heat dissipation fans (64) are fixedly installed on the inner side of the support frame (63); and the exhaust hole (66) is fixedly provided on the inner top of the inverter box body (2).

6. A photovoltaic power station inverter box according to claim 5, characterized in that: The ends of the plurality of heat dissipation fans (64) are arranged opposite to the air supply chamber (65), the end of the air supply chamber (65) is arranged opposite to the bottom end of the installation frame (54), and the top end of the installation frame (54) is arranged opposite to the inner side of the exhaust hole (66).

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