CN209994284U - Photovoltaic inverter with safety performance - Google Patents

Abstract

The utility model discloses a photovoltaic inverter with security performance, including photovoltaic inverter body and fin, the photovoltaic inverter body can convert DC power into alternating current power, the return circuit that steps up solar cell's DC voltage to the required DC voltage fin of inverter output control includes bottom plate and a plurality of heating panel, the left surface and the right flank of photovoltaic inverter body all are fixed with the fixed plate, be equipped with the mounting groove on the fixed plate, the side that the photovoltaic inverter body was kept away from to the fixed plate is fixed with first fixed block and second fixed block, be equipped with the pivot between first fixed block and the second fixed block, the both ends of pivot are connected with first fixed block and second fixed block rotation respectively, be fixed with in the pivot and compress tightly the frame, the bottom plate of fin is installed in the mounting groove, can make things convenient for the fin to dismantle from the photovoltaic inverter body, thereby make things convenient for the washing of fin.

Description

A photovoltaic inverter with safety performance

technical field

The utility model relates to the technical field of photovoltaic inverters, in particular to a photovoltaic inverter with safety performance.

Background technique

The inverter is a power adjustment device composed of semiconductor devices. It is mainly used to convert DC power into AC power. It is generally composed of a booster loop and an inverter bridge loop. The booster loop boosts the DC voltage of the solar cell. To the DC voltage required for the output control of the inverter, the inverter bridge circuit converts the boosted DC voltage into an AC voltage with a common frequency equivalently.

As one of the core equipment of solar photovoltaic power generation, the stability and service life of photovoltaic inverters are related to the working efficiency of the entire photovoltaic power station. an important factor. The existing photovoltaic inverter includes a photovoltaic inverter body, a cooling fan protective cover is fixedly connected to the front of the photovoltaic inverter body, a cooling fan is arranged inside the cooling fan protection cover, and a motor is arranged on one side of the cooling fan, One side of the motor is provided with a semiconductor cooling sheet, both sides of the photovoltaic inverter are bonded with a thermally conductive silicone grease layer, one side of the thermally conductive silicone grease layer is provided with a heat sink, and a cooling fan is provided on the outside of the photovoltaic inverter body And semiconductor refrigeration sheet, the function of fan and heat sink is mainly to dissipate heat for the hot end of the refrigeration sheet, accelerate the heat dissipation rate, improve the stability of the photovoltaic inverter, improve the working efficiency of the photovoltaic power station, and prolong the photovoltaic inverter. However, over time, a lot of dust and other substances will adhere to the heat sink, which will affect the efficiency of the heat sink, and the heat sink is fixed on the photovoltaic inverter body, so it is inconvenient to clean the dust on the heat sink.

Utility model content

The purpose of the present invention is to provide a photovoltaic inverter with safety performance to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a photovoltaic inverter with safety performance, comprising a photovoltaic inverter body and a heat sink, the heat sink includes a bottom plate and a plurality of heat sink plates, and the photovoltaic inverter body The left side and the right side of the inverter are fixed with a fixing plate, the fixing plate is provided with a mounting slot, and the side of the fixing plate away from the photovoltaic inverter body is fixed with a first fixing block and a second fixing block. A rotating shaft is arranged between the first fixing block and the second fixing block, two ends of the rotating shaft are respectively rotatably connected with the first fixing block and the second fixing block, a pressing frame is fixed on the rotating shaft, and the The bottom plate is installed in the installation groove, and the heat sink passes through the pressing frame, and the pressing frame presses the bottom plate in the installation groove.

Preferably, the pressing frame is provided with locking bolts, the fixing plate is provided with internal threaded holes corresponding to the locking bolts, and the locking bolts are threadedly connected with the internal threaded holes.

Preferably, a thermally conductive silicone grease layer is provided between the bottom plate and the photovoltaic inverter body.

Preferably, both the left side and the right side of the photovoltaic inverter body are fixed with handles, and the handles are arranged above the fixing plate.

Preferably, the shape of the handle is set to be U-shaped.

Preferably, two mounting ears are fixed on the top of the photovoltaic inverter body, and connection holes are provided on the mounting ears.

Preferably, the cooling fins are evenly arranged along the length direction of the bottom plate.

Preferably, an elastic layer is provided on the side of the pressing frame facing the fixing plate.

Preferably, the material of the elastic layer is set to be rubber.

Compared with the prior art, the beneficial effect of the present utility model is: in the utility model, the left side and right side of the photovoltaic inverter body are coated with thermally conductive silicone grease layers, and then the bottom plate of the heat sink is installed in the installation groove. At this time, the heat dissipation plate is facing outward, and then the pressing frame is rotated until the elastic layer presses the bottom plate of the heat sink into the mounting groove, and the locking bolt is threadedly connected with the inner threaded hole, thereby fixing the pressing frame and the fixing plate. ; When the heat sink is contaminated with a lot of dust, unscrew the locking bolt from the inner threaded hole, and then turn the pressing frame away from the heat sink. At this time, the heat sink can be removed, and the heat sink can be washed in water. , to facilitate the cleaning of the heat sink.

Description of drawings

FIG. 1 is a three-dimensional structural diagram of an embodiment of a photovoltaic inverter with safety performance of the present invention;

Fig. 2 is a perspective structural view of the hold-down frame when it is opened.

Labels in the figure: 1. Connection hole; 2. Mounting ear; 3. Handle; 4. Photovoltaic inverter body; 5. First fixing block; 6. Fixing plate; 7. Pressing frame; 8. Bottom plate; 9 10, the second fixing block; 11, the shaft; 12, the internal thread hole; 13, the installation slot; 14, the elastic layer; 15, the locking bolt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-2, the present utility model provides a technical solution: a photovoltaic inverter with safety performance, comprising a photovoltaic inverter body 4 and a heat sink, the heat sink includes a bottom plate 8 and a plurality of heat sink plates 9, which dissipate heat The sheets are evenly arranged along the length direction of the base plate 8 , the left side and the right side of the photovoltaic inverter body 4 are fixed with a fixing plate 6 , the fixing plate 6 is provided with a mounting slot 13 , and the fixing plate 6 is far away from the photovoltaic inverter body 4 . A first fixing block 5 and a second fixing block 10 are fixed on the side of the s The block 10 is rotatably connected, a pressing frame 7 is fixed on the rotating shaft 11, the bottom plate 8 of the heat sink is installed in the installation groove 13, the heat sink passes through the pressing frame 7, and the pressing frame 7 presses the bottom plate 8 in the installation groove 13. .

Further, the pressing frame 7 is provided with locking bolts 15, the fixing plate 6 is provided with internal threaded holes 12 corresponding to the locking bolts 15, and the locking bolts 15 are threadedly connected with the internal threaded holes 12, thereby connecting the pressing frame 7 and the internal threaded hole 12. The fixing plate 6 is connected.

Further, a thermally conductive silicone grease layer is provided between the bottom plate 8 and the photovoltaic inverter body 4 to increase the heat conduction effect between the heat sink and the photovoltaic inverter body 4 .

Further, handles 3 are fixed on the left side and the right side of the photovoltaic inverter body 4, the shape of the handle 3 is set to be U-shaped, and the handle 3 is arranged above the fixing plate 6, which is convenient for the photovoltaic inverter. lift the device.

Further, two mounting ears 2 are fixed on the top of the photovoltaic inverter body 4 , and the mounting ears 2 are provided with connection holes 1 , so as to facilitate the installation of the photovoltaic inverter body 4 .

Further, the side of the pressing frame 7 facing the fixing plate 6 is provided with an elastic layer 14 , and the material of the elastic layer 14 is set to be rubber, so that the pressing effect of the pressing frame 7 on the bottom plate 8 is better.

Working principle: a photovoltaic inverter with safety performance, when in use, the left side and right side of the photovoltaic inverter body 4 are coated with thermal grease layer, and then the bottom plate 8 of the heat sink is installed on the installation. Now the heat sink 9 is facing outward, then the pressing frame 7 is rotated until the elastic layer 14 presses the bottom plate 8 of the heat sink into the installation slot 13, and the locking bolt 15 is threadedly connected with the inner threaded hole 12, thereby Fix the pressing frame 7 to the fixing plate 6; when the heat sink is contaminated with a lot of dust, unscrew the locking bolt 15 from the inner threaded hole 12, and then rotate the pressing frame 7 away from the heat sink. After the heat sink is removed, the heat sink can be washed in water, which is convenient for the cleaning of the heat sink.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a photovoltaic inverter with security performance, includes photovoltaic inverter body (4) and fin, the fin includes bottom plate (8) and a plurality of heating panel (9), its characterized in that: the left surface and the right flank of photovoltaic inverter body (4) all are fixed with fixed plate (6), be equipped with mounting groove (13) on fixed plate (6), the side that photovoltaic inverter body (4) was kept away from in fixed plate (6) is fixed with first fixed block (5) and second fixed block (10), be equipped with pivot (11) between first fixed block (5) and second fixed block (10), the both ends of pivot (11) rotate with first fixed block (5) and second fixed block (10) respectively and are connected, be fixed with in pivot (11) and compress tightly frame (7), install in mounting groove (13) bottom plate (8) of fin, the fin passes and compresses tightly frame (7), compress tightly frame (7) and compress tightly bottom plate (8) in mounting groove (13).

2. A photovoltaic inverter with safety features as claimed in claim 1, characterized in that: the pressing frame (7) is provided with a locking bolt (15) in a penetrating mode, the fixing plate (6) is provided with an internal thread hole (12) corresponding to the locking bolt (15), and the locking bolt (15) is in threaded connection with the internal thread hole (12).

3. A photovoltaic inverter with safety features as claimed in claim 1, characterized in that: and a heat-conducting silicone grease layer is arranged between the bottom plate (8) and the photovoltaic inverter body (4).

4. A photovoltaic inverter with safety features as claimed in claim 1, characterized in that: the left side face and the right side face of the photovoltaic inverter body (4) are respectively fixed with a handle (3), and the handles (3) are arranged above the fixing plate (6).

5. A photovoltaic inverter with safety features according to claim 4, characterized in that: the handle (3) is U-shaped.

6. A photovoltaic inverter with safety features as claimed in claim 1, characterized in that: the photovoltaic inverter is characterized in that two hanging lugs (2) are fixed to the top of the photovoltaic inverter body (4), and connecting holes (1) are formed in the hanging lugs (2).

7. A photovoltaic inverter with safety features as claimed in claim 1, characterized in that: the radiating fins are uniformly arranged along the length direction of the bottom plate (8).

8. A photovoltaic inverter with safety features as claimed in claim 1, characterized in that: the side surface of the pressing frame (7) facing the fixing plate (6) is provided with an elastic layer (14).

9. A photovoltaic inverter with safety features as claimed in claim 8, characterized in that: the elastic layer (14) is made of rubber.

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