Inverter-controlled photovoltaic power generation device

Abstract

The utility model belongs to the technical field of solar power generation, particularly relates to an inversion-controlled photovoltaic power generation device, and aims to solve the problem that accumulated dust on existing radiating fins seriously affects the radiating effect and further aggravates the thermal load of an inverter. The photovoltaic inverter comprises a photovoltaic inverter body and a cooling fin arranged at the rear end of the photovoltaic inverter body and used for cooling, and further comprises a side U plate arranged at the side end of the photovoltaic inverter body, and a cooling assembly used for improving the cooling efficiency of the cooling fin is arranged in the side U plate; two groups of connecting assemblies are arranged between the photovoltaic inverter body and the side U plate, and the two groups of connecting assemblies are used for fixing the side U plate and the heat dissipation assembly on the surface of the heat dissipation sheet; and the integrated cleaning assembly can easily scrape dust on the cooling fins, a cooling channel is kept unobstructed, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of solar power generation, in particular to an inverter-controlled photovoltaic power generation device. Background Art

[0002] Photovoltaic solar panels generate variable DC voltage. An inverter is needed to convert the DC voltage into AC power at the mains frequency. It can be fed back to the commercial power transmission system or used for off-grid power grids. The photovoltaic inverter is one of the important system balancers in the photovoltaic array system and can be used in conjunction with general AC-powered equipment.

[0003] During the long-term operation of traditional photovoltaic power generation devices, the photovoltaic inverter body often suffers from poor heat dissipation, resulting in performance degradation or even damage. In addition, dust accumulation on the heat sink will seriously affect the heat dissipation effect, further increasing the heat load of the inverter. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that dust accumulation on the heat sink will seriously affect the heat dissipation effect and further aggravate the heat load of the inverter, and proposes an inverter-controlled photovoltaic power generation device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An inverter-controlled photovoltaic power generation device includes a photovoltaic inverter body and a heat sink disposed at the rear end of the photovoltaic inverter body for heat dissipation, and further includes:

[0007] A side U-plate, the side U-plate being arranged at the side end of the photovoltaic inverter body, and a heat dissipation component for increasing the heat dissipation efficiency of the heat sink being arranged in the side U-plate;

[0008] Wherein, two groups of connection components are provided between the photovoltaic inverter body and the side U plate, and the two groups of connection components are used to fix the side U plate and the heat dissipation component to the surface of the heat sink;

[0009] A cleaning component, which is arranged in the side U plate and is used to clean dust in the heat sink;

[0010] Connecting frames are fixed at both ends of the photovoltaic inverter body, and the two connecting frames are fixed to the wall by bolts.

[0011] In a possible design, two positioning blocks are fixed to the side ends of the side U plate, two fixing blocks are fixed to the upper and lower ends of the photovoltaic inverter body, two positioning gaps are formed between the four fixing blocks, and the two positioning blocks are respectively arranged in the two positioning gaps.

[0012] In a possible design, each group of the connecting components includes a first groove opened in the positioning block, two snap-in blocks slide in the first groove, snap-in grooves are opened in the two fixed blocks, the two snap-in blocks are snap-in with the two snap-in grooves respectively, a snap-in spring is fixed between the two snap-in blocks, and paddles are fixed on the side ends of the two snap-in blocks.

[0013] In a possible design, the heat dissipation assembly includes a plurality of heat dissipation fans, which are respectively fixed on the upper and lower sides of the side U plate, the heat sink is arranged between the plurality of heat dissipation fans, and a ventilation duct is formed between the plurality of heat dissipation fans.

[0014] In a possible design, the cleaning component includes a second groove opened in the side U plate, two limit rods are fixed in the second groove, the same slide plate slides on the surface of the two limit rods, a plurality of scrapers are fixed on the side end of the slide plate, the plurality of scrapers are in contact with the inner wall of the heat sink, and levers are fixed at both ends of the slide plate.

[0015] In a possible design, two positioning springs are fixed to the top of the slide plate, the side ends of the two positioning springs are fixed in the second groove, and the two positioning springs are respectively sleeved on the surfaces of the two limiting rods.

[0016] In the present application, when in use, the side U plate needs to be installed at the rear end of the photovoltaic inverter body, and the four paddles on both sides are pinched to make the four clamping blocks return to the two first grooves respectively, and the side U plate is placed against the rear end of the photovoltaic inverter body by aligning the positioning gap with the positioning block, and after aligning the clamping block and the clamping groove, the hand is released, and the elasticity of the clamping spring pushes the clamping block into the clamping groove to fix the position of the side U plate;

[0017] After the photovoltaic inverter body is fixed to the wall with bolts, when in use, an air duct is formed by starting multiple cooling fans to dissipate the heat emitted by the heat sink, which can quickly dissipate the heat of the heat sink. The lever is moved to drive the slide plate to move up and down, and the slide plate drives multiple scrapers to move up and down. When the scrapers move up and down, they clean the side walls of the heat sink, thereby ensuring the heat dissipation efficiency of the heat sink.

[0018] Beneficial Effects

[0019] In the utility model, the inverter-controlled photovoltaic power generation device can achieve the effect of assisting the heat sink to quickly dissipate heat through the heat dissipation component;

[0020] In the utility model, the inverter-controlled photovoltaic power generation device can clean the heat sink through the cleaning component to prevent the heat sink from affecting the heat dissipation efficiency due to dust accumulation;

[0021] In the utility model, the heat dissipation efficiency of the heat sink is significantly improved by adding a heat dissipation fan and forming a ventilation duct, ensuring the stable operation of the photovoltaic inverter body in harsh working environments. The integrated cleaning component can easily scrape off the dust on the heat sink, keeping the heat dissipation channel unobstructed, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front perspective view of an inverter-controlled photovoltaic power generation device proposed by the utility model;

[0023] Figure 2 This is a first partial cross-sectional view of an inverter-controlled photovoltaic power generation device proposed by the utility model;

[0024] Figure 3 A second partial cross-sectional view of an inverter-controlled photovoltaic power generation device proposed by the utility model;

[0025] Figure 4 This is a first partial stereoscopic diagram of an inverter-controlled photovoltaic power generation device proposed by the utility model;

[0026] Figure 5 This is a second partial stereoscopic diagram of an inverter-controlled photovoltaic power generation device proposed by the utility model.

[0027] In the figure: 1. photovoltaic inverter body; 2. connecting frame; 3. side U plate; 4. positioning block; 5. fixing block; 6. cooling fan; 7. first groove; 8. snap-in spring; 9. snap-in groove; 10. snap-in block; 11. paddle; 12. second groove; 13. limit rod; 14. positioning spring; 15. slide plate; 16. scraper; 17. paddle; 18. heat sink. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example 1

[0030] Reference Figure 1-Figure 5 An inverter-controlled photovoltaic power generation device is used in the field of solar power generation technology, and includes a photovoltaic inverter body 1, a side U plate 3, a heat sink 18, a connection component, a cleaning component, and a connection frame 2. The photovoltaic inverter body 1 is a core component responsible for converting the direct current generated by the photovoltaic cell into alternating current. The side U plate 3 is arranged at the side end of the photovoltaic inverter body 1, and a heat sink component and a cleaning component are integrated inside to enhance the heat dissipation effect and keep the heat sink 18 clean.

[0031] The side U plate 3 is fixedly connected to the photovoltaic inverter body 1 through two sets of connecting components. Two positioning blocks 4 are fixed to the side ends of the side U plate 3, and two fixing blocks 5 are fixed to the upper and lower ends of the photovoltaic inverter body 1. Two positioning gaps are formed between the four fixing blocks 5, and the positioning blocks 4 are just embedded in these gaps to achieve preliminary positioning.

[0032] Each set of connection components includes a first groove 7 provided in the positioning block 4, and two clamping blocks 10 are slidably installed in the first groove 7. The clamping blocks 10 are kept close to each other by the clamping spring 8, and a paddle 11 is fixed to the side end of each clamping block 10 for easy manual operation. When the side U plate 3 is close to the photovoltaic inverter body 1, the clamping block 10 automatically slides into the clamping groove 9 in the fixing block 5 under the action of the spring force to achieve a firm connection.

[0033] The heat dissipation assembly includes a plurality of heat dissipation fans 6, which are respectively fixed on the upper and lower sides of the side U plate 3, and the heat sink 18 is placed between these fans. When the heat dissipation fans 6 are working, the air flow is accelerated through the formed ventilation duct, which significantly improves the heat dissipation efficiency of the heat sink 18, ensuring that the photovoltaic inverter body 1 maintains a suitable working temperature during long-term operation.

[0034] Connecting frames 2 are fixed to both ends of the photovoltaic inverter body 1. These connecting frames 2 are directly fixed to the wall by bolts, so as to achieve stable installation of the entire device.

[0035] Example 2

[0036] refer to Figure 1-Figure 5 , improved on the basis of Example 1: the cleaning component is used to regularly clean the dust on the heat sink 18 to prevent dust accumulation from affecting the heat dissipation effect. The component includes a second groove 12 opened in the side U plate 3, and two limit rods 13 are arranged in the second groove 12. A slide plate 15 is slidably installed on the limit rod 13. A plurality of scrapers 16 are fixed to the side ends of the slide plate 15. These scrapers 16 are in close contact with the inner wall of the heat sink 18. When cleaning is required, by pulling the levers 17 at both ends of the slide plate 15, the slide plate 15 slides on the limit rod 13, driving the scrapers 16 to scrape off the dust on the heat sink 18. At the same time, two positioning springs 14 installed on the top of the slide plate 15 ensure that the slide plate 15 can automatically reset after cleaning.

[0037] However, as is well known to those skilled in the art, the working principle and wiring method of the cooling fan 6 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selection according to their needs or convenience.

[0038] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An inverter-controlled photovoltaic power generation device, comprising a photovoltaic inverter body (1) and a heat sink (18) disposed at the rear end of the photovoltaic inverter body (1) for heat dissipation, characterized in that: Also includes: A side U plate (3), the side U plate (3) being arranged at a side end of the photovoltaic inverter body (1), and a heat dissipation component for increasing the heat dissipation efficiency of the heat sink (18) being arranged inside the side U plate (3); Wherein, two groups of connection components are provided between the photovoltaic inverter body (1) and the side U plate (3), and the two groups of connection components are used to fix the side U plate (3) and the heat dissipation component to the surface of the heat sink (18); A cleaning component, the cleaning component being arranged in the side U plate (3) and used for cleaning dust in the heat sink (18); Connecting frames (2) are fixed to both ends of the photovoltaic inverter body (1), and the two connecting frames (2) are fixed to the wall surface by bolts.

2. The photovoltaic power generation device with inverter control according to claim 1, characterized in that: Two positioning blocks (4) are fixed to the side ends of the side U plate (3), two fixing blocks (5) are fixed to the upper and lower ends of the photovoltaic inverter body (1), two positioning gaps are formed between the four fixing blocks (5), and the two positioning blocks (4) are respectively arranged in the two positioning gaps.

3. The photovoltaic power generation device with inverter control according to claim 2, characterized in that: Each group of the connecting components comprises a first groove (7) provided in the positioning block (4), two clamping blocks (10) slidingly arranged in the first groove (7), a clamping groove (9) provided in each of the two fixing blocks (5), the two clamping blocks (10) being clamped with the two clamping grooves (9) respectively, a clamping spring (8) being fixed between the two clamping blocks (10), and a paddle (11) being fixed at the side ends of the two clamping blocks (10).

4. An inverter-controlled photovoltaic power generation device according to any one of claims 1 to 3, characterized in that: The heat dissipation assembly comprises a plurality of heat dissipation fans (6), the plurality of heat dissipation fans (6) are respectively fixed on the upper and lower sides of the side U plate (3), the heat sink (18) is arranged between the plurality of heat dissipation fans (6), and a ventilation duct is formed between the plurality of heat dissipation fans (6).

5. The photovoltaic power generation device with inverter control according to claim 4, characterized in that: The cleaning component comprises a second groove (12) formed in the side U plate (3), two limiting rods (13) being fixed in the second groove (12), a same slide plate (15) sliding on the surfaces of the two limiting rods (13), a plurality of scrapers (16) being fixed at the side ends of the slide plate (15), the plurality of scrapers (16) being in contact with the inner wall of the heat sink (18), and levers (17) being fixed at both ends of the slide plate (15).

6. The photovoltaic power generation device with inverter control according to claim 5, characterized in that: Two positioning springs (14) are fixed on the top of the slide plate (15), the side ends of the two positioning springs (14) are fixed in the second groove (12), and the two positioning springs (14) are respectively sleeved on the surfaces of the two limiting rods (13).

Images