Grid-forming type photovoltaic inverter

Abstract

The utility model discloses a net-forming type photovoltaic inverter, which belongs to the technical field of inverters and comprises a body, two fixing shells are fixedly connected to the back of the body, fixing structures are respectively arranged in the two fixing shells, a plurality of mounting groove holes are formed in the surface of a mounting plate, and the body is fixedly connected with the mounting plate through the fixing structures. The fixing structure comprises a main screw rod and two fixing assemblies, the body, the mounting plate, the fixing shell and the fixing structure are arranged to be used in a matched mode, the mounting plate can be fixed to a proper mounting position firstly, and then the body is combined and fixed with the mounting plate through the fixing shell and the fixing structure to complete mounting. The problems that an existing photovoltaic inverter is possibly limited by the installation space and the environment by adopting a hanging mode, the photovoltaic inverter needs to be hung on a wall surface or a specific support, so that the photovoltaic inverter is inconvenient to install, disassemble and repair, and the firmness after installation is possibly poor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic inverters, and in particular relates to a grid-building type photovoltaic inverter. Background Art

[0002] The grid-connected photovoltaic inverter, also known as the grid-connected photovoltaic inverter, is an important device in the photovoltaic system. Its main function is to adjust the current in a hybrid circuit and adjust the voltage difference between different line segments, so as to enable the circuits of each part to be integrated. It can convert the direct current generated by the photovoltaic components into alternating current that meets the power quality requirements of the power grid, and transmit it to the entire power grid system for use by loads in other areas. It needs to be installed in a fixed position when in use, which can ensure that the photovoltaic inverter can work normally and efficiently. During the installation process, it is necessary to select a suitable location to avoid direct sunlight and prevent water and dust from entering. When installing the photovoltaic inverter, it is usually fixed to the wall with a mounting frame, and then the photovoltaic inverter is installed on the mounting frame.

[0003] Research has found that traditional photovoltaic inverters that are mounted in a hanging manner may be limited by the installation space and environment. Since the inverter needs to be hung on a wall or a specific bracket, the installation and disassembly of the photovoltaic inverter may not be convenient enough, and the inverter may not be firmly installed. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a grid-type photovoltaic inverter, which has the advantages of fixing a mounting plate at a suitable mounting position, and then fixing the main body to the mounting plate through a fixed shell and a fixed structure to complete the installation, ensuring that the main body can be flexibly installed in a suitable position to work during installation. It solves the problem that the existing photovoltaic inverter adopts a hanging installation method that may be limited by the installation space and environment, and the installation and disassembly of the photovoltaic inverter may not be convenient because the inverter needs to be hung on a wall or a specific bracket, and the firmness after installation is not good.

[0005] The utility model is implemented as follows: a grid-type photovoltaic inverter comprises a main body, the back side of the main body is fixedly connected with two fixed shells, the interiors of the two fixed shells are respectively provided with fixed structures, the back side of the main body is provided with two mounting plates, the surfaces of the two mounting plates are respectively provided with a plurality of mounting slots, the main body is fixedly connected with the two mounting plates through two fixed structures, and the fixed structures comprise a main screw and two fixing components.

[0006] As a preferred embodiment of the utility model, a fixed sleeve is fixedly connected to the left side of the fixed shell, and a screw is rotatably connected to the outer surface of the fixed sleeve. The fixed shell is used in conjunction with the main screw. By setting the fixed shell, the main screw can rotate in the fixed shell and can be fixed and limited by the screw.

[0007] As a preferred embodiment of the utility model, the fixed structure includes a main screw, both ends of the main screw are rotatably connected to the left and right sides of the inner wall of the fixed shell respectively, the left side of the main screw extends and penetrates the surface of the fixed shell, the surface of the left side of the main screw is sleeved on the inner wall of the fixed sleeve, and the left side of the main screw is fixedly connected with a handle. The main screw is used in conjunction with the fixed assembly, and the main screw is arranged so that the main screw can drive the movable sleeve on its surface to move left and right when it rotates.

[0008] As a preferred embodiment of the present invention, the fixed assembly includes a movable sleeve, the inner wall of the movable sleeve is threadedly connected to the surface of the main screw, the upper and lower sides of the movable sleeve are respectively rotatably connected to the rotating rod through a rotating shaft, the ends of the rotating rods away from each other are fixedly connected to the movable rod, and the surfaces of the two movable rods are respectively sleeved with linkage arms. By setting the movable sleeve, the movable sleeve drives the two rotating rods to rotate during the movement, thereby driving the movement of the two movable rods.

[0009] As a preferred embodiment of the utility model, linkage grooves are respectively provided on the surfaces of the two linkage arms, and the two linkage arms are respectively sleeved on the surface of the moving rod through the linkage grooves, and the ends of the two linkage arms that are away from each other are respectively fixedly connected with moving arms, and by setting the linkage arms, the two moving rods can drive the two linkage arms to move closer together through the linkage grooves when moving, thereby driving the two moving arms to move closer together.

[0010] As a preferred embodiment of the utility model, the ends of the two movable arms that are away from each other extend respectively and penetrate the surface of the fixed shell, and the surfaces of the two movable arms are fixedly connected with fixed arms. By setting the movable arms, the two movable arms can respectively drive the two fixed arms to move closer during the movement.

[0011] As a preferred embodiment of the utility model, a plurality of fixed blocks are fixedly connected to one side of the two fixed arms close to each other, and the sizes of the plurality of fixed blocks correspond to the sizes of the installation slots. By setting the fixed arms, the two fixed arms can drive the fixed blocks to approach and dock with the installation slots when moving close to each other, thereby completing the installation and fixation of the main body.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model achieves the effect of solving the problem that the existing photovoltaic inverter may be limited by the installation space and environment when it is hung by setting a main body, a mounting plate, a fixed shell and a fixed structure. Since the inverter needs to be hung on a wall or a specific bracket, the installation and disassembly of the photovoltaic inverter may not be convenient enough, and the firmness after installation may be poor.

[0014] 2. The utility model can first fix the mounting plate in a suitable mounting position by setting a mounting plate, a fixed shell and a fixed structure, and then complete the installation by combining the main body with the mounting plate through the fixed shell and the fixed structure, ensuring that the main body can be flexibly installed in a suitable position for work during installation, and can be conveniently disassembled when maintenance is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram provided by an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a body, a mounting plate and a fixed housing provided by an embodiment of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the back of the fixed housing and a structural schematic diagram of the fixed structural part provided by the embodiment of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a fixing structure provided by an embodiment of the utility model.

[0019] In the figure: 1, main body; 2, mounting plate; 201, mounting slot; 3, fixed shell; 4, fixed structure; 5, fixed sleeve; 6, main screw; 7, fixed assembly; 8, handle; 9, movable sleeve; 10, rotating rod; 11, movable rod; 12, linkage arm; 13, linkage slot; 14, movable arm; 15, fixed arm; 16, fixed block. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4As shown, a grid-type photovoltaic inverter provided by an embodiment of the utility model includes a main body 1, two fixed shells 3 are fixedly connected to the back of the main body 1, and the interiors of the two fixed shells 3 are respectively provided with fixed structures 4, and two mounting plates 2 are arranged on the back of the main body 1. A plurality of mounting slots 201 are respectively opened on the surfaces of the two mounting plates 2. The main body 1 is fixedly connected to the two mounting plates 2 through the two fixed structures 4, and the fixed structure 4 includes a main screw 6 and two fixing components 7.

[0023] refer to Figure 3 The left side of the fixed shell 3 is fixedly connected with a fixed sleeve 5, and the outer surface of the fixed sleeve 5 is rotatably connected with a screw, and the fixed shell 3 is used in conjunction with the main screw 6.

[0024] The above solution is adopted: by providing a fixed housing 3, the main screw 6 can be rotated in the fixed housing 3 and the main screw 6 can be fixed and limited by screws.

[0025] refer to Figure 3 and Figure 4 The fixing structure 4 includes a main screw 6, both ends of which are rotatably connected to the left and right sides of the inner wall of the fixed shell 3 respectively, the left side of the main screw 6 extends and penetrates the surface of the fixed shell 3, the surface of the left side of the main screw 6 is sleeved on the inner wall of the fixed sleeve 5, and the left side of the main screw 6 is fixedly connected with a handle 8, and the main screw 6 is used in conjunction with the fixing component 7.

[0026] The above solution is adopted: by arranging the main screw 6, the main screw 6 can drive the movable sleeve 9 on its surface to move left and right when rotating.

[0027] refer to Figure 4 The fixed component 7 includes a movable sleeve 9, the inner wall of the movable sleeve 9 is threadedly connected to the surface of the main screw 6, and the upper and lower sides of the movable sleeve 9 are respectively rotatably connected to a rotating rod 10 through a rotating shaft. The ends of the rotating rods 10 that are away from each other are fixedly connected to a movable rod 11, and the surfaces of the two movable rods 11 are respectively sleeved with linkage arms 12.

[0028] The above solution is adopted: by arranging the movable sleeve 9, the movable sleeve 9 drives the two rotating rods 10 to rotate during the movement process, thereby driving the movement of the two movable rods 11.

[0029] refer to Figure 4 The surfaces of the two linkage arms 12 are respectively provided with linkage grooves 13, and the two linkage arms 12 are respectively sleeved on the surface of the moving rod 11 through the linkage grooves 13, and the ends of the two linkage arms 12 that are away from each other are respectively fixedly connected with the moving arms 14.

[0030] The above solution is adopted: by providing the linkage arm 12, the two moving rods 11 can drive the two linkage arms 12 to move closer together through the linkage slot 13 when moving, thereby driving the two moving arms 14 to move closer together.

[0031] refer to Figure 4 One end of the two movable arms 14 that is away from each other extends and penetrates the surface of the fixed housing 3 , and the surfaces of the two movable arms 14 are fixedly connected with fixed arms 15 .

[0032] The above solution is adopted: by providing the movable arms 14, the two movable arms 14 respectively drive the two fixed arms 15 to move closer during the movement process.

[0033] refer to Figure 4 A plurality of fixing blocks 16 are fixedly connected to the sides of the two fixing arms 15 that are close to each other, and the sizes of the plurality of fixing blocks 16 correspond to the sizes of the installation slots 201 .

[0034] The above solution is adopted: by providing the fixing arms 15 , the two fixing arms 15 drive the fixing blocks 16 to approach and approach and dock with the installation slots 201 when moving closer, so as to complete the installation and fixation of the body 1 .

[0035] The working principle of this utility model:

[0036] When in use, first fix the two mounting plates 2 in appropriate positions and space them with appropriate spaces by bolts, move the main body 1 close to the mounting plate 2, and then turn the handle 8 to drive the main screw 6 to rotate. When the main screw 6 rotates, it drives the movable sleeve 9 to move left on its surface, and the movable sleeve 9 moves and drives the two rotating rods 10 to rotate, thereby driving the movement of the two movable rods 11. When the two movable rods 11 move, they respectively drive the two linkage arms 12 to move closer through the linkage grooves 13. The two linkage arms 12 move closer and drive the two movable arms 14 to move closer. The two movable arms 14 move closer to cause the two fixed arms 15 to move closer. The two fixed arms 15 move closer and drive the two fixed blocks 16 to move closer. The two fixed blocks 16 move closer to the mounting slots 201 and are respectively clamped and fixed thereto, and then the screws are tightened to fix the main screw 6 to a limit position, thereby completing the installation of the main body 1.

[0037] In summary: the grid-type photovoltaic inverter, through the coordinated use of the main body 1, the mounting plate 2, the fixed housing 3 and the fixed structure 4, solves the problem that the photovoltaic inverter may be restricted by the installation space and environment when it is mounted in a hanging manner. Since the inverter needs to be hung on a wall or a specific bracket, the installation and disassembly of the photovoltaic inverter may not be convenient enough, and the firmness after installation may be poor.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grid-type photovoltaic inverter, comprising a main body (1), characterized in that: The back of the body (1) is fixedly connected to two fixed shells (3), and the interiors of the two fixed shells (3) are respectively provided with fixed structures (4). The back of the body (1) is provided with two mounting plates (2), and the surfaces of the two mounting plates (2) are respectively provided with a plurality of mounting slots (201). The body (1) is fixedly connected to the two mounting plates (2) via the two fixed structures (4), and the fixed structures (4) include a main screw (6) and two fixed components (7).

2. A grid-connected photovoltaic inverter according to claim 1, characterized in that: A fixed sleeve (5) is fixedly connected to the left side of the fixed shell (3), and a screw is rotatably connected to the outer surface of the fixed sleeve (5). The fixed shell (3) is used in conjunction with a main screw rod (6).

3. A grid-connected photovoltaic inverter according to claim 1, characterized in that: The fixing structure (4) comprises a main screw (6), the two ends of which are rotatably connected to the left and right sides of the inner wall of the fixing shell (3), respectively; the left side of the main screw (6) extends and penetrates the surface of the fixing shell (3); the surface of the left side of the main screw (6) is sleeved on the inner wall of the fixing sleeve (5); the left side of the main screw (6) is fixedly connected to a handle (8); and the main screw (6) is used in conjunction with the fixing assembly (7).

4. A grid-connected photovoltaic inverter as claimed in claim 3, characterized in that: The fixing assembly (7) comprises a movable sleeve (9), the inner wall of which is threadedly connected to the surface of the main screw (6), the upper and lower sides of the movable sleeve (9) are respectively rotatably connected to rotating rods (10) via rotating shafts, the ends of the rotating rods (10) that are away from each other are fixedly connected to movable rods (11), and the surfaces of the two movable rods (11) are respectively sleeved with linkage arms (12).

5. A grid-connected photovoltaic inverter as claimed in claim 4, characterized in that: The surfaces of the two linkage arms (12) are respectively provided with linkage grooves (13), and the two linkage arms (12) are respectively sleeved on the surface of the moving rod (11) through the linkage grooves (13), and the ends of the two linkage arms (12) that are away from each other are respectively fixedly connected with the moving arms (14).

6. A grid-connected photovoltaic inverter according to claim 5, characterized in that: One end of the two movable arms (14) that is away from each other extends respectively and penetrates the surface of the fixed housing (3), and the surfaces of the two movable arms (14) are fixedly connected with fixed arms (15).

7. A grid-type photovoltaic inverter according to claim 6, characterized in that: A plurality of fixing blocks (16) are respectively fixedly connected to the sides of the two fixing arms (15) that are close to each other, and the sizes of the plurality of fixing blocks (16) respectively correspond to the sizes of the installation slot holes (201).

Images