Photovoltaic inverter protection device

Abstract

The invention relates to the technical field of photovoltaic inverter protection devices, in particular to a photovoltaic inverter protection device. Comprising an inverter box body, the inverter box body is provided with a cooling pipe, the inverter box body is fixedly connected with a wind collecting shell, the wind collecting shell is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a blade fan; the bird repelling piece is fixedly connected to the upper side of the inverter box body; and the first hard pipe communicates with the air collecting shell, the first hard pipe communicates with a first communicating shell, the first communicating shell communicates with a second hard pipe, and the second hard pipe communicates with an air blowing shell. The motor drives the blade fan to rotate to generate air flow, the air flow enters the cooling pipe to take away heat, so that the temperature of the inverter box body is controlled, meanwhile, when wind blows, the bird repelling piece shakes and makes a sound, nearby birds are repelled, and the bird repelling effect is improved. The probability of nesting of birds on the inverter box body is reduced, the amount of bird excrement on the inverter is reduced, and normal work of the inverter is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic inverter protection devices, and in particular to a photovoltaic inverter protection device. Background Art

[0002] A photovoltaic inverter is an electronic device that converts direct current into alternating current. It is mainly used in solar photovoltaic power generation systems to convert the direct current generated by solar panels into alternating current that meets grid standards so that it can be incorporated into the grid or used by loads. It also performs functions such as maximum power point tracking, grid monitoring, fault protection, and data monitoring to ensure efficient and stable operation of the system. The photovoltaic inverter protection device is a key component to ensure safe operation of the system and prevent equipment damage and personal accidents.

[0003] When using outdoor photovoltaic inverters, birds often land or even build nests on the photovoltaic inverter protection device, which will affect the heat dissipation capacity of the photovoltaic inverter protection device, causing the photovoltaic inverter to overheat. In addition, birds will defecate on the photovoltaic inverter protection device, and the excrement of birds will corrode the photovoltaic inverter protection device. The above two situations will cause the photovoltaic inverter to fail to work normally. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a photovoltaic inverter protection device.

[0005] Technical solution: Photovoltaic inverter protection device, including: An inverter box, wherein the inverter box is provided with a cooling pipe, the inverter box is fixedly connected with an air collecting shell connected with the cooling pipe, the air collecting shell is fixedly connected with a motor, and the output shaft of the motor is fixedly connected with a blade fan; A bird-repelling member, fixedly connected to the upper side of the inverter box; The first hard tube is connected to the wind collecting shell, the first hard tube is connected to the first connecting shell, the first connecting shell is connected to the second hard tube, the second hard tube is connected to the blowing shell, and the blowing shell is used to blow wind toward the bird repelling member.

[0006] In addition, it is particularly preferred that the invention further comprises: The first sliding column is slidably connected in the first connecting shell, and the first sliding column is used to control the connection and closing of the first hard tube and the second hard tube.

[0007] In addition, it is particularly preferred that the invention further comprises: A fixed shell is fixedly connected to the upper side of the inverter box, the fixed shell is slidably connected with a sliding member, and a first spring is arranged between the sliding member and the fixed shell; The movable plate is fixedly connected to the sliding member, the movable plate is fitted with the bird-repelling member, and a connecting rod is fixedly connected to the movable plate. The connecting rod passes through the first connecting shell and is fixedly connected to the first sliding column.

[0008] In addition, it is particularly preferred that the blowing shell is located between the moving plate and the bird repelling member.

[0009] In addition, it is particularly preferred that the invention further comprises: The first limiting column is slidably connected to the first connecting shell, a second spring is arranged between the first limiting column and the first connecting shell, the first sliding column is provided with a first groove, and the first limiting column is inserted into the first groove to limit the first sliding column.

[0010] In addition, it is particularly preferred that the invention further comprises: A water collecting shell is fixedly connected to the inverter box body, the water collecting shell is connected to a third hard pipe, and the third hard pipe is connected to a second connecting shell; A fourth hard tube is connected to the cooling tube, the fourth hard tube is connected to the second connecting shell, the inverter box is provided with a water collecting tank, the projections of the movable plate and the bird repellent on the horizontal plane are smaller than the projection of the water collecting tank on the horizontal plane, and the water collecting shell and the water collecting tank are connected through a fifth hard tube.

[0011] In addition, it is particularly preferred that the invention further comprises: The second sliding column is slidably connected in the second connecting shell, and the second sliding column is used to control the connection and closing of the third hard tube and the fourth hard tube.

[0012] In addition, it is particularly preferred that the invention further comprises: A gas storage shell, fixedly connected to the inverter housing, wherein the gas storage shell is filled with thermal expansion gas; A sliding rod is slidably connected to the gas storage shell, and the sliding rod passes through the second connecting shell and is fixedly connected to the second sliding column.

[0013] In addition, it is particularly preferred that the invention further comprises: A second limiting column is slidably connected to the gas storage shell, a third spring is arranged between the second limiting column and the gas storage shell, the sliding rod is provided with a second groove, and the second limiting column is inserted into the second groove to limit the sliding rod.

[0014] In addition, it is particularly preferred that one end of the cooling pipe away from the air collecting shell is located below the inverter case, so as to allow the air and water discharged from the cooling pipe to be blown toward the ground below the inverter case.

[0015] The beneficial effects produced by adopting the above scheme are as follows: the present invention generates wind flow by driving the blade fan to rotate through the motor, so that the wind flow enters the cooling pipe and takes away the heat, thereby controlling the temperature of the inverter case and reducing the failure of the inverter case caused by excessive temperature. At the same time, a bird-repelling component is provided, and when wind blows, the bird-repelling component is vibrated and makes a sound, thereby driving away nearby birds, reducing the probability of birds nesting on the inverter case and reducing the amount of bird excrement on the inverter, thereby ensuring the normal operation of the inverter.

[0016] When a bird lands on the bird-repelling member, the movable plate drives the first sliding column to move, so that the wind flows from the blowing shell to the bird-repelling member, causing the bird-repelling member to vibrate and make a sound to drive the bird away. After the bird moves away, the bird-repelling member stops vibrating, reducing the generation of noise. At the same time, the working intensity of the bird-repelling member can be reduced, and its service life can be extended.

[0017] When the temperature of the inverter box is too high, the water in the water collecting shell enters the cooling pipe, thereby improving the heat dissipation effect of the inverter box, so as to dissipate the heat of the inverter box as soon as possible, and the excess water is discharged from the cooling pipe and drips on the ground, thereby lowering the temperature of the ground, thereby lowering the ambient temperature near the inverter box, and further accelerating the dissipation of the inverter box temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the bird-repelling member and the blowing shell of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the motor and the blade fan of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the inverter box and cooling pipe of the present invention; Figure 5 It is a three-dimensional structural cross-sectional view of the gas storage shell and the sliding rod of the present invention.

[0019] In the figure: 1. inverter box, 101. water collecting tank, 2. cooling pipe, 3. wind collecting shell, 4. motor, 5. blade fan, 6. bird repellent, 7. first hard pipe, 8. first connecting shell, 9. second hard pipe, 10. blowing shell, 11. first sliding column, 12. fixed shell, 13. sliding part, 14. movable plate, 15. connecting rod, 16. first limiting column, 17. water collecting shell, 18. third hard pipe, 19. second connecting shell, 20. fourth hard pipe, 21. fifth hard pipe, 22. second sliding column, 23. air storage shell, 24. sliding rod, 25. second limiting column. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] Photovoltaic inverter protection devices, such as Figure 1-Figure 4 As shown, it includes an inverter case 1, the inverter case 1 is provided with a cooling pipe 2, the inverter case 1 is fixedly connected to a wind collecting shell 3 connected to the cooling pipe 2, the wind collecting shell 3 is fixedly connected to a motor 4, and the output shaft of the motor 4 is fixedly connected to a blade fan 5; a bird-repelling component 6 is fixedly connected to the upper side of the inverter case 1; a first hard tube 7 is connected to the wind collecting shell 3, the first hard tube 7 is connected to a first connecting shell 8, the first connecting shell 8 is connected to a second hard tube 9, the second hard tube 9 is connected to a blowing shell 10, and the blowing shell 10 is used to blow wind toward the bird-repelling component 6.

[0022] In the above scheme, the purpose is to dissipate heat from the inverter case 1 and drive away birds. The cooling pipe 2 shown in the figure is arranged on the rear and lower sides of the inverter case 1. In actual use, it can be adjusted as needed to achieve the best heat dissipation effect. The wind collecting shell 3 is funnel-shaped, which is used to inhale more air to form wind flow, and let the wind flow enter the cooling pipe 2 to take away the heat of the inverter case 1. A shielding net can be set at the entrance of the wind collecting shell 3. The bird-repelling part 6 can be made of a thinner metal sheet or plastic sheet, so that the bird-repelling part 6 will shake and make a sound when blown, thereby driving away birds. The right side of the bird-repelling part 6 can be fixed on the whole side or fixed at a fixed point as needed, and the projection of the bird-repelling part 6 on the horizontal plane is larger than the projection of the inverter case 1 on the horizontal plane, so that birds cannot land on the inverter case 1.

[0023] Further, such as Figure 3 As shown, it also includes: a first sliding column 11, which is slidably connected in the first connecting shell 8, and the first sliding column 11 is used to control the connection and closing of the first hard tube 7 and the second hard tube 9.

[0024] In the above scheme, the movement of the first sliding column 11 is controlled. When there are birds, the first connecting shell 8 connects the first hard tube 7 and the second hard tube 9, so that the bird-repelling member 6 drives the birds away. When the birds leave, the first connecting shell 8 disconnects the connection between the first hard tube 7 and the second hard tube 9, so as to avoid the bird-repelling member 6 shaking for a long time to generate noise pollution.

[0025] Further, such as Figure 1-Figure 3As shown, it also includes: a fixed shell 12, fixedly connected to the upper side of the inverter box 1, the fixed shell 12 is slidably connected to the sliding member 13, and a first spring is arranged between the sliding member 13 and the fixed shell 12; a moving plate 14, fixedly connected to the sliding member 13, the moving plate 14 is fitted with the bird-repelling member 6, and the moving plate 14 is fixedly connected to a connecting rod 15, and the connecting rod 15 passes through the first connecting shell 8 and is fixed to the first sliding column 11. The blowing shell 10 is located between the moving plate 14 and the bird-repelling member 6.

[0026] In the above scheme, the purpose is to monitor whether there are birds landing on the inverter box 1. The elastic coefficient required for the first spring between the sliding member 13 and the fixed shell 12 does not need to be too large, and it is only necessary to enable the sliding member 13 to be reset normally, so as to avoid the sliding member 13 being unable to be pressed down when a bird lands on the inverter box 1. The position of the blowing shell 10 is used to ensure that the wind flow can blow to the bird repellent member 6, thereby ensuring the normal operation of the device.

[0027] Further, such as Figure 3 As shown, it also includes: a first limiting column 16, which is sealingly and slidably connected to the first connecting shell 8, a second spring is arranged between the first limiting column 16 and the first connecting shell 8, and the first sliding column 11 is provided with a first groove, and the first limiting column 16 is inserted into the first groove to limit the first sliding column 11.

[0028] In the above scheme, the first sliding column 11 is limited, so as to prevent the moving plate 14 from frequently shaking the first sliding column 11 due to environmental reasons. The first limiting column 16 is composed of a cylinder and a hemisphere, the depth of the first groove on the first sliding column 11 is less than the radius of the hemisphere of the first limiting column 16, and the second spring between the first limiting column 16 and the first connecting shell 8 is initially in a compressed state, which is used to provide the first limiting column 16 with the force required to limit the first sliding column 11.

[0029] Working process: When the device is in use, the inverter case 1 is installed in the use position, the motor 4 is started, and the output shaft of the motor 4 drives the blade fan 5 to rotate, thereby forming a wind flow, and the wind flow enters the cooling pipe 2 from the wind collecting shell 3, and then is discharged from the lower side of the cooling pipe 2 to dissipate heat for the inverter case 1. When a bird wants to land on the inverter case 1, the bird lands on the bird-repelling part 6, and the bird presses the bird-repelling part 6 downward, and the bird-repelling part 6 drives the moving plate 14 to move, and the moving plate 14 drives the sliding part 13 to move, and the sliding part 13 moves downward and compresses the adjacent first spring. The moving plate 14 moves and drives the connecting rod 15 to move at the same time, and the connecting rod 15 drives the first sliding column 11 to move, and the first sliding column 11 moves downward and squeezes the first limiting column 16, and the first limiting column 16 moves to the right and compresses the adjacent second spring, and the first limiting column 16 stops when it is separated from the first groove on the first sliding column 11. Stop moving, when the first sliding column 11 releases the blockage of the first hard tube 7 and the second hard tube 9, the blade fan 5 forms a part of the wind flow and starts from the wind collecting shell 3, passes through the first hard tube 7, the first connecting shell 8, and the second hard tube 9 into the blowing shell 10, and then blows out from the blowing shell 10, causing the bird-repelling part 6 to shake and make a sound, thereby driving away the birds with the shaking and sound. When the birds fly away, the sliding member 13 is reset under the action of the adjacent first spring, and the sliding member 13 drives the moving plate 14 to reset, and the moving plate 14 drives the first sliding column 11 to reset through the connecting rod 15. After the first sliding column 11 is reset, the first limiting column 16 is inserted into the first groove of the first sliding column 11 under the action of the adjacent second spring. At this time, the first sliding column 11 blocks the connection between the first hard tube 7 and the second hard tube 9 and the first connecting shell 8, so that the wind flow cannot pass through, so as to prevent the bird-repelling part 6 from shaking all the time and generating too much noise.

[0030] Further, such as Figure 1 and Figure 3-Figure 5 As shown, it also includes: a water collecting shell 17, which is fixed to the inverter case 1, and the water collecting shell 17 is connected to the third hard pipe 18, and the third hard pipe 18 is connected to the second connecting shell 19; a fourth hard pipe 20 is connected to the cooling pipe 2, and the fourth hard pipe 20 is connected to the second connecting shell 19, and the inverter case 1 is provided with a water collecting tank 101, and the projections of the movable plate 14 and the bird-repelling member 6 on the horizontal plane are both smaller than the projection of the water collecting tank 101 on the horizontal plane, and the water collecting shell 17 and the water collecting tank 101 are connected through the fifth hard pipe 21.

[0031] In the above scheme, the heat dissipation capacity of the inverter box 1 is improved. The water collecting shell 17 is used to store water, and water can be added to the water collecting shell 17 actively, or rainwater can be collected by the water collecting tank 101 for use. The connection between the fourth hard pipe 20 and the water collecting shell 17 is located at the lower side of the water collecting shell 17, and the water collecting tank 101 is used to add water to the water collecting shell 17 or collect rainwater.

[0032] Further, such as Figure 5As shown, it also includes: a second sliding column 22, which is sealingly and slidingly connected in the second connecting shell 19, and the second sliding column 22 is used to control the connection and closing of the third hard tube 18 and the fourth hard tube 20.

[0033] In the above scheme, the movement of the second sliding column 22 is controlled. When the temperature is too high, the second connecting shell 19 connects the third hard tube 18 and the fourth hard tube 20, so that the water in the water collecting shell 17 enters the cooling tube 2, thereby improving the heat dissipation capacity of the inverter box 1.

[0034] Further, such as Figure 4 and Figure 5 As shown, it also includes: a gas storage shell 23 fixedly connected to the inverter box body 1, and the gas storage shell 23 is filled with thermal expansion gas; a sliding rod 24 slidably connected to the gas storage shell 23, and the sliding rod 24 passes through the second connecting shell 19 and is fixedly connected to the second sliding column 22.

[0035] In the above scheme, the temperature of the inverter case 1 is monitored. The thermal expansion gas in the gas storage shell 23 expands after heating to push the sliding rod 24 to move. The side of the gas storage shell 23 in contact with the inverter case 1 is made of a material with high thermal conductivity, and the rest is made of a heat-insulating material. The sliding rod 24 is made of a heat-insulating material to improve the accuracy of temperature monitoring.

[0036] Further, such as Figure 5 As shown, it also includes: a second limiting column 25, which is slidably connected to the air storage shell 23, a third spring is arranged between the second limiting column 25 and the air storage shell 23, and the sliding rod 24 is provided with a second groove, and the second limiting column 25 is inserted into the second groove to limit the sliding rod 24. The end of the cooling pipe 2 away from the air collecting shell 3 is located below the inverter box 1, which is used to make the air and water discharged from the cooling pipe 2 blow to the ground below the inverter box 1.

[0037] In the above scheme, the sliding rod 24 is intended to be limited so that the sliding rod 24 does not reciprocate due to normal temperature fluctuations. The third spring between the second limiting column 25 and the gas storage shell 23 is initially in a compressed state, the second limiting column 25 is composed of a cylinder and a hemisphere, and the depth of the second groove on the sliding rod 24 is less than the radius of the hemisphere of the second limiting column 25.

[0038] Working process: When the temperature of the inverter box 1 is too high due to reasons such as excessively high ambient temperature, the temperature of the inverter box 1 rises, and the temperature of the thermal expansion gas in the gas storage shell 23 rises and expands, thereby increasing the gas pressure therein. When the gas pressure rises to a level that can push the sliding rod 24, the sliding rod 24 moves to the right and squeezes the second limiting column 25. The second limiting column 25 moves upward and compresses the adjacent third spring. The sliding rod 24 pushes the second sliding column 22 to move to the right, and the second sliding column 22 releases the third hard tube 18 and the fourth The rigid tube 20 is blocked, so that the two are connected through the second connecting shell 19. At this time, the speed of the wind flow in the cooling tube 2 is greater than the speed of the wind flow at the connection between the water collecting tank 101 and the fifth rigid tube 21. According to the Bernoulli principle, the faster the flow rate, the lower the pressure. At this time, the water in the water collecting shell 17 is sucked into the cooling tube 2 through the third rigid tube 18, the second connecting shell 19 and the fourth rigid tube 20. At this time, because the wind flow speed in the cooling tube 2 is fast and the amount of water entering the cooling tube 2 is small, the water is blown into water mist by the wind flow and moves with the wind flow. The water mist moves. During the cooling process, the water mist adheres to the inner wall of the cooling pipe 2, thereby absorbing the heat on the cooling pipe 2. The fine water mist evaporates and is carried away by the wind, and is finally discharged from the lower side of the cooling pipe 2, thereby improving the heat dissipation capacity of the inverter box 1 and maintaining the temperature of the inverter box 1 stable. When the amount of water entering the cooling pipe 2 is more than the water mist required to absorb heat, the excess water is discharged from the lower side of the cooling pipe 2 and drips on the ground under the inverter box 1, thereby cooling the ground near the inverter box 1 and reducing the surrounding area of ​​the inverter box 1. Due to the heat of the environment, after the temperature of the inverter box 1 returns to normal, the thermally expanded gas in the air storage shell 23 contracts, causing the sliding rod 24 to move to the left. At the same time, the sliding rod 24 drives the second sliding column 22 to move to the left, so that the second sliding column 22 blocks the second connecting shell 19. After the sliding rod 24 is reset, the second limiting column 25 is inserted into the second groove of the sliding rod 24 under the action of the third spring. At this time, the second sliding column 22 is reset to block the connection between the third hard tube 18 and the fourth hard tube 20 and the second connecting shell 19.

[0039] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. Photovoltaic inverter protection device, characterized in that: Included are: An inverter case (1), the inverter case (1) being provided with a cooling pipe (2), the inverter case (1) being fixedly connected to an air collecting shell (3) in communication with the cooling pipe (2), the air collecting shell (3) being fixedly connected to a motor (4), and the output shaft of the motor (4) being fixedly connected to a blade fan (5); A bird-repelling member (6) is fixedly connected to the upper side of the inverter housing (1); A first hard tube (7) is connected to the wind collecting shell (3), the first hard tube (7) is connected to a first connecting shell (8), the first connecting shell (8) is connected to a second hard tube (9), the second hard tube (9) is connected to a blowing shell (10), and the blowing shell (10) is used to blow wind toward the bird-repelling member (6).

2. The photovoltaic inverter protection device according to claim 1, characterized in that: Also included are: A first sliding column (11) is slidably connected in the first connecting shell (8), and the first sliding column (11) is used to control the connection and closing of the first hard tube (7) and the second hard tube (9).

3. The photovoltaic inverter protection device according to claim 2, characterized in that: Also included are: A fixed shell (12) is fixedly connected to the upper side of the inverter housing (1), the fixed shell (12) is slidably connected to a sliding member (13), and a first spring is provided between the sliding member (13) and the fixed shell (12); The movable plate (14) is fixedly connected to the sliding member (13), the movable plate (14) is in contact with the bird-repelling member (6), the movable plate (14) is fixedly connected to a connecting rod (15), and the connecting rod (15) passes through the first connecting shell (8) and is fixedly connected to the first sliding column (11).

4. The photovoltaic inverter protection device according to claim 3, characterized in that: The blowing shell (10) is located between the moving plate (14) and the bird-repelling member (6).

5. The photovoltaic inverter protection device according to claim 3, characterized in that: Also included are: A first limiting column (16) is slidably connected to the first connecting shell (8); a second spring is provided between the first limiting column (16) and the first connecting shell (8); the first sliding column (11) is provided with a first groove; the first limiting column (16) is inserted into the first groove to limit the first sliding column (11).

6. The photovoltaic inverter protection device according to claim 3, characterized in that: Also included are: A water collecting shell (17) is fixedly connected to the inverter housing (1), the water collecting shell (17) is connected to a third hard pipe (18), and the third hard pipe (18) is connected to a second connecting shell (19); A fourth hard tube (20) is connected to the cooling tube (2), the fourth hard tube (20) is connected to the second connecting shell (19), the inverter housing (1) is provided with a water collecting trough (101), the projections of the movable plate (14) and the bird repellent member (6) on the horizontal plane are both smaller than the projection of the water collecting trough (101) on the horizontal plane, and the water collecting shell (17) and the water collecting trough (101) are connected via a fifth hard tube (21).

7. The photovoltaic inverter protection device according to claim 6, characterized in that: Also included are: A second sliding column (22) is slidably connected in the second connecting shell (19), and the second sliding column (22) is used to control the connection and closing of the third hard tube (18) and the fourth hard tube (20).

8. The photovoltaic inverter protection device according to claim 7, characterized in that: Also included are: A gas storage shell (23) is fixedly connected to the inverter housing (1), and the gas storage shell (23) is filled with thermal expansion gas; A sliding rod (24) is slidably connected to the gas storage shell (23); the sliding rod (24) passes through the second connecting shell (19) and is fixedly connected to the second sliding column (22).

9. The photovoltaic inverter protection device according to claim 8, characterized in that: Also included are: A second limiting column (25) is slidably connected to the gas storage shell (23); a third spring is provided between the second limiting column (25) and the gas storage shell (23); the sliding rod (24) is provided with a second groove; the second limiting column (25) is inserted into the second groove to limit the sliding rod (24).

10. The photovoltaic inverter protection device according to claim 9, characterized in that: One end of the cooling pipe (2) away from the air collecting shell (3) is located below the inverter case (1) and is used to allow the air and water discharged from the cooling pipe (2) to be blown toward the ground below the inverter case (1).

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