High-voltage grid-connected box of photovoltaic power station

Abstract

The utility model discloses a high-voltage grid-connected box of a photovoltaic power station, and belongs to the technical field of grid-connected box installation. Comprising a main body assembly and a tightening assembly, the main body assembly comprises a grid-connected box main body, the side wall of the grid-connected box main body is connected with a plurality of cross rods and fixing rods, the tightening assembly comprises a fixing block, a base block, a first connecting block, a second connecting block, a first fastening block, a second fastening block, a first locking block and a second locking block, and a screw penetrates through the first locking block and the second locking block. The angle and the enclosing range can be adjusted through the first fastening block and the second fastening block, the device can adapt to columns of different models, the extrusion effect is achieved when the columns of different thicknesses are enclosed through cooperation of the first ceramic piece and the second ceramic piece, and the adaptability of the device is high; besides, after the grid-connected box main body is fixed through the cross rod, the mounting or dismounting effect can be achieved only by adjusting the screw rod and the screw sleeve and fastening or separating the locking block I and the locking block II, so that the device is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of grid-connected box installation, and more specifically to a high-voltage grid-connected box for a photovoltaic power station. Background Art

[0002] The high-voltage grid-connected box is a device used to convert the direct current generated by solar panels into alternating current and input it into the grid. Its main function is to ensure that the photovoltaic system can be safely and efficiently connected to the grid and realize two-way transmission of electricity.

[0003] The grid-connected box usually needs to be installed in a suitable location based on the specific conditions on site. Common installation locations include the distribution room, outdoor walls, and outdoor columns. Installing it on an outdoor column is a more common installation scenario.

[0004] The existing high-voltage grid-connected boxes of photovoltaic power stations are usually installed on the columns through mounting bases and multiple bolts. The mounting bases are of fixed size. Each time they are installed, the diameter of the column needs to be measured and then the appropriate mounting base needs to be selected, which makes the installation more troublesome. The mounting structure cannot match columns of different sizes and the installation adaptability is low. In addition, due to the large number of bolts used for installation, it is more complicated for the staff to disassemble and install the main body of the grid-connected box, which is not convenient for installation and disassembly. In view of this, we propose a high-voltage grid-connected box for photovoltaic power stations. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The utility model aims to provide a high-voltage grid-connected box for a photovoltaic power station, so as to solve the problems of low installation adaptability and inconvenience in installation and disassembly proposed in the above-mentioned background technology.

[0007] 2. Technical solution

[0008] A high-voltage grid-connected box for a photovoltaic power station, comprising a main body component and a clamping component;

[0009] The main body assembly comprises a grid-connected box body, and the side wall of the grid-connected box body is connected with a plurality of cross bars and fixing bars;

[0010] The tightening hoop assembly includes multiple fixing blocks connected to the side walls of the fixing rod, the side walls of the fixing blocks are connected to a base block, one end of the base block is rotatably connected to a connecting block 1, the other end of the base block is rotatably connected to a connecting block 2, the end of the connecting block 1 is rotatably connected to a fastening block 1, the end of the connecting block 2 is rotatably connected to a fastening block 2, a side wall of the fastening block is provided with multiple springs 2, the two ends of the multiple springs are connected to a ceramic sheet 2, the side wall of the fastening block 2 is provided with multiple springs 1, the ends of the multiple springs 1 are connected to a ceramic sheet 1, the end of the fastening block 1 is rotatably connected to a locking block 2, the two ends of the fastening block 1 are rotatably connected, a screw rod is penetrated by one side wall of the locking block and the two side walls of the locking block, and a screw sleeve is sleeved on the circumferential outer wall of the screw rod.

[0011] Preferably, the fixing rod and the cross rod are made of aluminum alloy, the fixing rod is 80 cm long, and the cross rod is 28 cm long.

[0012] Preferably, the grid-connected box body is a stainless steel hollow box structure, and the side walls of the grid-connected box body are provided with a box door and a glass window.

[0013] Preferably, the ceramic sheet 1 and the ceramic sheet 2 are made of silicon nitride ceramic material, the side walls are in an arc shape, and the thickness is 1.8 cm.

[0014] Preferably, the screw end is provided with a rotating plate, and the rotating plate is a rectangular steel sheet structure.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The utility model can adjust the angle of the fastening block one and the fastening block two, that is, adjust the range of the enclosure between the fastening block one and the fastening block two, so as to adapt to columns of different models, and cooperate with the elastic force of the spring on the ceramic plate one and the ceramic plate two, and the mutual contraction force of the fastening block one and the fastening block two to squeeze the enclosed column, and have an squeezing effect when enclosing columns of different thicknesses, thereby enhancing the tightening effect and making the adaptability of the device high; in addition, after the grid-connected box body is fixed by the cross bar, installation and disassembly only need to adjust the screw and the screw sleeve to tighten or separate the locking block one and the locking block two to achieve the effect of installation or disassembly, making the device easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation and connection structure of the main assembly of the utility model;

[0020] Figure 3This is a schematic diagram of the structure of the clamp assembly of the utility model;

[0021] Explanation of the numbers in the figure: 1. Main assembly; 2. Clamp assembly; 101. Grid box body; 102. Fixed rod; 103. Cross bar; 201. Fixed block; 202. Base block; 203. Connecting block one; 204. Connecting block two; 205. Fastening block one; 206. Fastening block two; 207. Spring one; 208. Ceramic sheet one; 209. Spring two; 210. Ceramic sheet two; 211. Locking block one; 212. Locking block two; 213. Screw; 214. Rotating plate; 215. Screw sleeve. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] See also Figure 1-3 ,The utility model provides a technical solution:

[0026] A photovoltaic power station high-voltage grid-connected box, comprising a main body component 1 and a clamping component 2;

[0027] Specifically, the main assembly 1 includes a grid-connected box body 101, the side wall of the grid-connected box body 101 is screwed to two cross bars 103, the two cross bars 103 are welded with fixing rods 102, and the grid-connected box body 101 is firmly fixed by the two cross bars 103, the structure is simple, and the disassembly is convenient;

[0028] The main body 101 of the grid-connected box is provided with a 100A knife switch, a 100A Tianzheng reclosing switch, a 63A circuit breaker, a 40KA surge and a 16 square national standard copper wire. This part is the existing technology and will not be described in detail.

[0029] Further, the clamp assembly 2 includes a fixing block 201 connected to the side wall of the fixing rod 102 by two screws, a base block 202 is welded to the side wall of the fixing block 201, one end of the base block 202 is rotatably connected to a connecting block 1 203, and the other end of the base block 202 is rotatably connected to a connecting block 2 204, the end of the connecting block 1 203 is rotatably connected to a fastening block 1 205, and the end of the connecting block 2 204 is rotatably connected to a fastening block 206, which is conducive to adjusting the angle of the fastening block 1 205 and the fastening block 2 206, that is, adjusting the range enclosed between the fastening block 1 205 and the fastening block 2 206. It can be applied to the enclosure of various types of columns, and the adaptability of the device is improved. Two springs 209 are welded to the side wall of the fastening block 205, and the ends of the two springs 209 are welded to the ceramic pieces 210. Two springs 207 are welded to the side wall of the fastening block 206, and the ends of the two springs 207 are welded to the ceramic pieces 208. The ceramic pieces 208 and 210 are squeezed toward the columns enclosed by the device under the action of the spring elastic force, and there is an squeezing effect when enclosing columns of different thicknesses, thereby strengthening the tightening effect, enhancing the adaptability of the device, and tightening. The end of the fixing block 1 205 is rotatably connected with the locking block 212, and the end of the fixing block 206 is rotatably connected with the locking block 1 211. The side walls of the locking block 1 211 and the side walls of the locking block 212 are penetrated by screw rods 213, and the outer wall of the screw rods 213 is sleeved with screw sleeves 215. When the grid-connecting box needs to be installed on a roadside column, the column installation position is determined, and the fixing blocks 1 205 and the fixing blocks 206 are used to enclose the column, so that the ceramic sheet 1 208 and the ceramic sheet 210 are further squeezed toward the column by the spring force, and then the screw rods 213 are screwed. The sleeve 215 penetrates through the side wall of the locking block 1 211 and the side wall of the locking block 212, and is sleeved on the end of the screw 213. By rotating the rotating plate 214 of the screw 213, the screw 213 is tightened in cooperation with the sleeve 215, and the locking block 1 211 and the locking block 212 are further tightened, driving the fastening block 1 205 and the fastening block 2 206 to tighten the column. At this time, the ceramic sheet 1 208 and the ceramic sheet 2 210 are subjected to the elastic force of the spring, as well as the mutual contraction force of the fastening block 1 205 and the fastening block 2 206, which will firmly clamp and fix the column.

[0030] It is worth noting that, in order to ensure the stability of the supporting structure material on the back of the grid-connected box body 101, the fixing rod 102 and the cross bar 103 are made of aluminum alloy. The fixing rod 102 is 80 cm long and the cross bar 103 is 28 cm long.

[0031] It is worth noting that, in order to make the grid-connected box body 101 strong and durable, the grid-connected box body 101 is a stainless steel hollow box structure, and the side wall of the grid-connected box body 101 is provided with a box door and a glass window.

[0032] In addition, in order to make the ceramic sheet 1 208 and the ceramic sheet 2 210 have the characteristics of high hardness, high temperature resistance and friction resistance, the ceramic sheet 1 208 and the ceramic sheet 2 210 are made of silicon nitride ceramic material, and the side walls are in an arc shape and have a thickness of 1.8 cm.

[0033] Finally, in order to facilitate the rotation of the screw rod 213, a rotating plate 214 is provided at the end of the screw rod 213, and the rotating plate 214 is a rectangular steel sheet structure.

[0034] Working principle: When the device is required to be installed, the two cross bars 103 and the grid-connected box body 101 are fixed firmly by screws, the position of the column where the grid-connected box is installed is determined, the fastening block 1 205 and the fastening block 2 206 are used to enclose the column, and the ceramic sheet 1 208 and the ceramic sheet 2 210 are further pressed toward the column by the spring force, and then the screw 213 is passed through the side wall of the locking block 1 211 and the side wall of the locking block 2 212, and the screw sleeve 215 is sleeved. At the end of the screw 213, by rotating the rotating plate 214 of the screw 213, the screw 213 is tightened in cooperation with the threaded sleeve 215, and the locking block 1 211 and the locking block 2 212 are further tightened, driving the fastening block 1 205 and the fastening block 2 206 to tighten the column. At this time, the ceramic plate 1 208 and the ceramic plate 2 210 are subjected to the elastic force of the spring and the mutual contraction force of the fastening block 1 205 and the fastening block 2 206, which will firmly clamp and fix the column.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high voltage grid-connected box for a photovoltaic power station, characterized in that: It comprises a main body component (1) and a tight hoop component (2); A main body component (1), the main body component (1) comprising a grid-connected box body (101), a plurality of cross bars (103) and fixing bars (102) being connected to a side wall of the grid-connected box body (101); The tightening hoop assembly (2) comprises a plurality of fixing blocks (201) connected to the side wall of the fixing rod (102); the side wall of the fixing block (201) is connected to a base block (202); one end of the base block (202) is rotatably connected to a connecting block 1 (203); the other end of the base block (202) is rotatably connected to a connecting block 2 (204); the end of the connecting block 1 (203) is rotatably connected to a fastening block 1 (205); the end of the connecting block 2 (204) is rotatably connected to a fastening block 2 (206); the side wall of the fastening block 1 (205) is provided with a plurality of springs 2 (20 9), the ends of the plurality of springs 2 (209) are connected to ceramic sheet 2 (210), the side wall of the fastening block 2 (206) is provided with a plurality of springs 1 (207), the ends of the plurality of springs 1 (207) are connected to ceramic sheet 1 (208), the end of the fastening block 1 (205) is rotatably connected to locking block 2 (212), the end of the fastening block 2 (206) is rotatably connected to locking block 1 (211), the side wall of the locking block 1 (211) and the side wall of the locking block 2 (212) are penetrated by a screw (213), and the circumferential outer wall of the screw (213) is sleeved with a threaded sleeve (215).

2. The photovoltaic power station high voltage grid-connected box according to claim 1, characterized in that: The fixing rod (102) and the cross rod (103) are made of aluminum alloy. The fixing rod (102) is 80 centimeters long, and the cross rod (103) is 28 centimeters long.

3. The photovoltaic power station high voltage grid-connected box according to claim 2, characterized in that: The grid-connected box body (101) is a stainless steel hollow box structure, and a box door and a glass window are provided on the side wall of the grid-connected box body (101).

4. The photovoltaic power station high voltage grid-connected box according to claim 3, characterized in that: The ceramic sheet 1 (208) and the ceramic sheet 2 (210) are made of silicon nitride ceramic material, and the side walls are in the shape of arc surfaces and have a thickness of 1.8 centimeters.

5. The photovoltaic power station high voltage grid-connected box according to claim 4, characterized in that: The end of the screw rod (213) is provided with a rotating plate (214), and the rotating plate (214) is a rectangular steel sheet structure.

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