Outdoor photovoltaic inverter

Abstract

The utility model provides an outdoor photovoltaic inverter, which belongs to the technical field of photovoltaic inverters and structurally comprises an outer box group, a flow guide plate is transversely arranged in the middle of a cavity of the outer box group, an inverter main body is suspended on the top surface of the flow guide plate, and a heat dissipation assembly is communicated with the middle of the bottom surface of the flow guide plate. The lower end of the heat dissipation assembly is communicated with the inner bottom of the cavity of the outer box set, and the upper part of the inverter main body is provided with a flow collection exhaust set. Then the filtered air can be specifically blown to the front, rear, left, right and lower side surfaces of the inverter main body for active blowing heat dissipation through guiding and shunting of the flow guide cover group and the flow guide plate, and the flow collection exhaust group performs active air extraction above the inverter main body and can also extract heat energy on the top surface of the inverter main body; and each side surface of the inverter main body is actively blown to dissipate heat, so that the heat dissipation of the inverter main body is more uniform and efficient, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to an outdoor photovoltaic inverter, belonging to the technical field of photovoltaic inverters. Background Art

[0002] Photovoltaic inverters, also known as power regulators, can be divided into two types according to their use in photovoltaic power generation systems: standalone power supply and grid-connected. Based on the waveform modulation method, they can be further divided into square wave inverters, step wave inverters, sine wave inverters, and combined three-phase inverters. For inverters used in grid-connected systems, they can be further divided into transformer-type inverters and transformerless inverters based on whether or not a transformer is present.

[0003] Photovoltaic inverters generate a large amount of heat energy when in use. In order to prevent the service life from being shortened, active heat dissipation is required. The existing heat dissipation method is to install an exhaust fan on one side of the cavity where the photovoltaic inverter is installed to extract air for heat dissipation. This method cannot directly and effectively blow air on all sides of the photovoltaic inverter, resulting in uneven heat dissipation of the photovoltaic inverter as a whole. To address the above shortcomings, the utility model proposes an outdoor photovoltaic inverter. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide an outdoor photovoltaic inverter to solve the existing problems.

[0005] To achieve the above-mentioned object, the present invention is implemented through the following technical solutions: an outdoor photovoltaic inverter, the structure of which includes an outer box group, and a guide plate is horizontally arranged in the middle of the outer box group cavity, and the inverter body is suspended on the top surface of the guide plate, the middle of the bottom surface of the guide plate is connected to a heat dissipation component, the lower end of the heat dissipation component is connected to the bottom of the outer box group cavity, a collecting and exhaust group is arranged above the inverter body, the left end of the collecting and exhaust group is connected to the upper left end of the outer box group, and a rain cap is provided on the upper left side of the outer box group;

[0006] The heat dissipation component includes an air filter element, and an exhaust fan is arranged in the upper end cavity of the air filter element. The top surface of the air filter element is sleeved with a guide cover group.

[0007] A further improvement is that the outer box group cavity is separated into an inverter installation chamber and a heat dissipation component installation chamber by a guide plate, and a wiring opening is opened on the rear side of the inverter installation chamber, and a plurality of air intake holes are opened in the middle of the bottom surface of the heat dissipation component installation chamber, an exhaust hole is opened at the upper end of the left side surface of the inverter installation chamber, and a box door is hinged on the front side of the outer box group.

[0008] A further improvement is that the guide plate member includes a horizontal plate, and a plurality of first blowing holes are obliquely opened on the four sides of the top surface of the horizontal plate, and a plurality of second blowing holes are opened at intervals in the middle of the top surface of the horizontal plate. The sides of the top surface of the horizontal plate are also provided with a plurality of mounting protrusions for suspending the inverter body.

[0009] A further improvement is that the deflector cover group is composed of an outer cover and an inner cover, the gap between the outer cover and the inner cover forms a side guide channel, and the middle of the inner cover is connected to the bottom surface of the outer cover to form a central guide channel.

[0010] A further improvement is that the collecting and exhausting group includes an exhaust pipe, and a collecting expansion nozzle is provided on the right bottom surface of the exhaust pipe, and a fan is provided in the left side of the exhaust pipe, and a fixing seat is provided on the top surface of the exhaust pipe.

[0011] A further improvement is that the inverter body and the air filter are existing technologies, and their structures are not described in detail here.

[0012] A further improvement is that a waterproof cover is provided on the outside of the cable opening.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides an outdoor photovoltaic inverter. The outdoor photovoltaic inverter is formed by a structural combination of an outer box group, a guide plate, an inverter body, a heat dissipation component, a collecting and exhausting group, and a rainproof cap. When the device dissipates heat, the air drawn in can be filtered first. Then, the filtered air can be blown to the front, rear, left, right, and lower sides of the inverter body through the guide and diversion of the guide cover group and the guide plate to perform active air blowing and heat dissipation. In addition, the collecting and exhausting group actively draws air above the inverter body and can also draw away heat energy from the top surface of the inverter body, so that each side of the inverter body can be actively blown and dissipated, making the heat dissipation of the inverter body more uniform and efficient, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an outdoor photovoltaic inverter of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the outer box assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the guide plate of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the air guide cover group of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the collecting and exhaust group of the utility model. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-5 The utility model is a schematic diagram of a technical solution of an outdoor photovoltaic inverter: its structure includes an outer box group 1, and a guide plate 2 is horizontally arranged in the middle of the cavity of the outer box group 1, and an inverter main body 3 is suspended on the top surface of the guide plate 2, and a heat dissipation component 4 is connected to the middle of the bottom surface of the guide plate 2. The lower end of the heat dissipation component 4 is connected to the bottom of the cavity of the outer box group 1, and a collecting and exhaust group 5 is arranged above the inverter main body 3. The left end of the collecting and exhaust group 5 is connected to the upper left end of the outer box group 1, and a rainproof cap 6 is provided on the upper left side of the outer box group 1. The heat dissipation component 4 includes an air filter 41, and an exhaust fan 42 is provided in the upper end cavity of the air filter 41, and a guide cover group 43 is fitted on the top surface of the air filter 41.

[0022] The inner cavity of the outer box group 1 is separated into an inverter installation chamber 11 and a heat dissipation component installation chamber 12 by a guide plate 2, and a cable opening 13 is provided on the rear side of the inverter installation chamber 11, and a plurality of air intake holes 14 are provided in the middle of the bottom surface of the heat dissipation component installation chamber 12. An exhaust hole 15 is provided at the upper end of the left side surface of the inverter installation chamber 11, and a box door 16 is hinged on the front side of the outer box group 1.

[0023] The guide plate member 2 includes a transverse plate 21, and a plurality of first air blowing holes 22 are obliquely provided on the four sides of the top surface of the transverse plate 21, and a plurality of second air blowing holes 23 are provided at intervals in the middle of the top surface of the transverse plate 21. The top surface side of the transverse plate 21 is also provided with a plurality of mounting protrusions 24 for suspending the inverter body 3.

[0024] The air guide cover assembly 43 is composed of an outer cover 431 and an inner cover 432. The gap between the outer cover 431 and the inner cover 432 forms a side guide channel 433. The middle of the inner cover 432 is connected to the bottom surface of the outer cover 431 to form a middle guide channel 434.

[0025] The collecting and exhausting group 5 includes an exhaust pipe 51 , and a collecting expansion nozzle 52 is provided on the right bottom surface of the exhaust pipe 51 , and a fan 53 is provided in the left side of the exhaust pipe 51 . A fixing seat 54 is provided on the top surface of the exhaust pipe 51 .

[0026] Working principle:

[0027] When the inverter body 3 is to be actively cooled, the exhaust fan 42 is first turned on to draw in external air from the air inlet holes 14, and the dust in the air is filtered out at the air filter 41. Then, when the air passes through the air guide cover group 43, it will be separated and flow upward from the side guide channels 433 and the central guide channel 434. The air in the side guide channels 433 will pass through the oblique holes of the first blowing holes 22 and blow toward the four sides of the inverter body 3, front, back, left and right, for targeted heat dissipation. The air in the central guide channel 434 will pass through the second blowing holes 23 and blow toward the bottom surface of the inverter body 3 for targeted heat dissipation. The synchronous fan 53 will start to accelerate the exhaust, so that the collecting and expanding nozzle 52 can also extract the heat energy from the top surface of the inverter body 3. Finally, the air wrapped in the heat energy will be discharged from the exhaust holes 15.

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An outdoor photovoltaic inverter, characterized by: Its structure includes an outer box group (1), and a guide plate (2) is horizontally arranged in the middle of the cavity of the outer box group (1), and an inverter body (3) is suspended on the top surface of the guide plate (2), a heat dissipation component (4) is connected to the middle of the bottom surface of the guide plate (2), and the lower end of the heat dissipation component (4) is connected to the bottom of the cavity of the outer box group (1), and a collecting and exhausting group (5) is arranged above the inverter body (3), and the left end of the collecting and exhausting group (5) is connected to the upper left end of the outer box group (1), and a rainproof cap (6) is provided on the upper left side of the outer box group (1); The heat dissipation assembly (4) includes an air filter (41), and an exhaust fan (42) is provided in the upper end cavity of the air filter (41). The top surface of the air filter (41) is sleeved with a flow guide cover group (43).

2. The outdoor photovoltaic inverter according to claim 1, characterized in that: The outer box assembly (1) is divided into an inverter installation chamber (11) and a heat dissipation assembly installation chamber (12) by a guide plate (2), and a cable opening (13) is provided on the rear side of the inverter installation chamber (11), and a plurality of air inlet holes (14) are provided in the middle of the bottom surface of the heat dissipation assembly installation chamber (12), and an exhaust hole (15) is provided on the upper end of the left side surface of the inverter installation chamber (11). A box door (16) is hinged on the front side of the outer box assembly (1).

3. The outdoor photovoltaic inverter according to claim 2, characterized in that: The guide plate member (2) includes a transverse plate (21), and a plurality of first air blowing holes (22) are obliquely provided at intervals on four sides of the top surface of the transverse plate (21), and a plurality of second air blowing holes (23) are provided at intervals in the middle of the top surface of the transverse plate (21). The top surface side of the transverse plate (21) is also provided with a plurality of mounting protrusions (24) for suspending the inverter body (3).

4. The outdoor photovoltaic inverter according to claim 3, characterized in that: The deflector cover assembly (43) is formed by fitting an outer cover (431) and an inner cover (432), a side deflector (433) is formed in the gap between the outer cover (431) and the inner cover (432), and a middle deflector (434) is formed in the middle of the inner cover (432) in communication with the bottom surface of the outer cover (431).

5. The outdoor photovoltaic inverter according to claim 4, characterized in that: The flow collecting and exhausting group (5) comprises an exhaust pipe (51), a flow collecting expansion nozzle (52) is provided on the right bottom surface of the exhaust pipe (51), a fan (53) is provided in the left side of the exhaust pipe (51), and a fixing seat (54) is provided on the top surface of the exhaust pipe (51).

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