Shell structure of photovoltaic inverter

Abstract

The utility model discloses a photovoltaic inverter shell structure, which comprises a shell, mounting plates, an inverter body and a clamping plate, a group of opposite inner walls in the shell are connected with the mounting plates, the mounting plates are provided with second bolts to be in fit connection with the bottom of the inverter body, radiating fins are arranged at the bottom of the mounting plates in an array manner, and the clamping plate is connected with the mounting plates through the second bolts. The bottom of the mounting plate is connected with a circulating water pipe, the circulating water pipe is laid between every two adjacent heat dissipation fins in a crossed mode, and the heat dissipation fins are arranged at the bottom of the mounting plate so that collected heat can be conveniently dissipated. A circulating water pipe is laid between every two adjacent heat dissipation fins, when the inverter body needs to be rapidly cooled, rapid cooling and heat dissipation are achieved through simultaneous operation of the circulating pipes and the heat dissipation fins, and an F plate is arranged to be matched with a first fixing side edge and a limiting side edge; therefore, the shell can be quickly mounted through the clamping connection of the elastic clamping blocks and the limiting notches.

Description

Technical Field

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

[0002] Photovoltaic inverters are inverters that can convert the variable DC voltage generated by photovoltaic solar panels into AC power at the mains frequency, which can be fed back to the commercial power transmission system or used for off-grid power grids. Photovoltaic inverters are one of the important system balances in photovoltaic array systems and can be used with general AC-powered equipment.

[0003] In the photovoltaic + microgrid energy storage project, photovoltaic power generation devices and energy storage batteries will be installed in a large number of households to build a distributed power generation and energy storage system.

[0004] In the prior art, for small and medium-sized photovoltaic inverter models, the shell structure of the photovoltaic inverter needs to be simple in structure to facilitate installation. Some photovoltaic inverters are installed outdoors, and the sealing of the shell needs to be ensured to prevent rainwater or moisture in the air from entering the shell and affecting the working performance of the photovoltaic inverter.

[0005] In order to protect the normal operation of the photovoltaic inverter, the housing of the photovoltaic inverter will also be installed with a heat dissipation device. The heat dissipation device in the housing of the photovoltaic inverter in the prior art is relatively simple, and most of them achieve heat dissipation through a fan. This has a poor heat dissipation effect and cannot achieve rapid cooling and heat dissipation. In addition, the installation of the photovoltaic inverter in the prior art is relatively troublesome, so it needs to be improved. Utility Model Content

[0006] The utility model aims to provide a housing structure of a photovoltaic inverter, so as to solve the technical problem that the housing of the photovoltaic inverter in the prior art is simple and cannot achieve rapid cooling and heat dissipation.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model provides a housing structure of a photovoltaic inverter, comprising a housing, a mounting plate arranged inside the housing, an inverter body arranged on the mounting plate, and a clamping plate slidably clamped with the housing;

[0009] A mounting plate is connected to a group of opposite inner walls inside the shell, and a second bolt is provided on the mounting plate to fit the bottom of the inverter body. A plurality of heat dissipation fins for heat conduction and heat dissipation are arranged in an array at the bottom of the mounting plate, and a circulating water pipe for rapid cooling is also connected to the bottom of the mounting plate, and the circulating water pipe is cross-laid between every two adjacent heat dissipation fins.

[0010] The bottom of the inverter body is connected to the mounting plate by arranging a second bolt, so that the heat generated by the components inside the inverter can be collected and introduced into the mounting plate. A plurality of heat dissipation fins are arranged at the bottom of the mounting plate to dissipate the collected heat. A circulating water pipe is laid between every two adjacent heat dissipation fins, and when the inverter body needs to be cooled quickly, the circulating pipe and the heat dissipation fins can be operated simultaneously to achieve rapid cooling and heat dissipation.

[0011] Optionally, a circulating water pipe water inlet is connected to a circulating pump box, a circulating water pipe water outlet is connected to a water tank, and an extraction pipe is connected between the circulating pump box and the water tank. By arranging the circulating pump box and the water tank, the circulation of water inside the circulating water pipe is realized, and the heat of the mounting plate is quickly dissipated. The outside of the extraction pipe is sheathed with a rock wool layer for thermal insulation. By arranging the rock wool sheath on the outside of the extraction pipe, the influence of the external environment on the water temperature inside the circulating water pipe is avoided.

[0012] Optionally, heat dissipation windows are arranged on both sides of the shell at the same horizontal height relative to the heat dissipation fins and the circulating water pipe, and a plurality of heat dissipation fans for increasing the internal air circulation speed are also arranged inside the shell. By setting the heat dissipation windows, the air circulation speed inside the shell is increased, thereby improving the heat dissipation effect.

[0013] Optionally, a group of opposite side outer walls on the outside of the shell are connected with a first fixed side and a limiting side, and the snap-in plate is connected with an F-plate, the F-plate includes a clamping block correspondingly clamped in the gap between the first fixed side and the limiting side, and a plurality of limiting slots for sliding clamping are arranged in an array downward from the top of the F-plate, and an elastic clamping block for clamping is arranged corresponding to the limiting slot in the F-plate. By arranging the F-plate to adapt to the first fixed side and the limiting side, the snap-in plate can be fixed first during installation, and then the first fixed side and the limiting side in the shell can be correspondingly clamped in the clamping block and slid until the elastic clamping block is clamped in the limiting slot to achieve clamping installation, which is convenient to install.

[0014] Optionally, the first fixed side is flush with the bottom of the shell, the second fixed side is flush with the bottom of the clip-on plate, and both the first fixed side and the second fixed side are provided with connecting holes for connecting fixing bolts. By providing connecting holes on both the first fixed side and the second fixed side, the product can be directly fixedly connected to the connecting holes of the first fixed side through the fixing bolts.

[0015] Optionally, the end of the snap-in plate is also connected to a rain shelter, and the end of the rain shelter is configured as an arc-shaped structure for convenient rain shelter. The rain shelter is provided to prevent rainwater from entering the interior of the shell and affecting the product.

[0016] Optionally, a group of opposite inner walls inside the shell are provided with transverse grooves for installing a mounting plate, a transverse plate is provided at the end of the mounting plate to be clamped with the transverse groove, and a first bolt is provided at the end of the transverse plate to be connected and fixed to the shell.

[0017] Optionally, a cover plate is connected to the shell, a sealing gasket is provided between the cover plate and the shell, and the cover plate is provided with a perspective window for observation corresponding to the inverter body. By providing the perspective window, the product can directly observe the working status of the inverter body inside the shell through the perspective window.

[0018] Beneficial effects and advantages of the utility model:

[0019] The housing structure of the photovoltaic inverter is provided with a second bolt to fit the bottom of the inverter body with the mounting plate, so that the heat generated by the components inside the inverter can be collected and introduced into the mounting plate, and a plurality of heat dissipation fins are provided at the bottom of the mounting plate to dissipate the collected heat. A circulating water pipe is laid between every two adjacent heat dissipation fins, and when the inverter body needs to be cooled quickly, the circulating pipe and the heat dissipation fins can be operated simultaneously to achieve rapid cooling and heat dissipation.

[0020] By setting a rock wool sleeve on the outside of the extraction pipe, the influence of the external environment on the water temperature inside the circulating water pipe is avoided. By setting a heat dissipation window, the air circulation speed inside the shell is increased, and the heat dissipation effect is increased. By setting the F plate to adapt to the first fixed side and the limiting side, the product can be installed by first fixing the clamping plate, and then the first fixed side and the limiting side in the shell are correspondingly clamped in the clamping block and slide until the elastic clamping block is clamped in the limiting groove to achieve clamping installation, which is convenient for installation. By setting connection holes on both the first fixed side and the second fixed side, the product can be directly fixedly connected to the connection hole of the first fixed side through the fixing bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0023] Figure 3 It is a partial cross-sectional view of the utility model;

[0024] Figure 4 It is a schematic diagram of the internal structure of the utility model when viewed from above.

[0025] In the figure: 1-housing, 11-mounting plate, 111-cross plate, 112-first bolt, 113-first fixed side, 114-limiting side, 115-limiting notch, 116-heat dissipation window, 117-sealing gasket, 12-inverter body, 121-second bolt, 13-heat dissipation fin, 14-circulating water pipe, 15-water tank, 16-circulating pump box, 17-extraction pipe, 18-heat dissipation fan, 19-cover plate, 20-perspective window, 2-clamping plate, 21-second fixed side, 22-F plate, 23-block, 24-elastic clamping block, 25-awning. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 an indirect connection 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 invention can be understood by specific circumstances.

[0029] An embodiment, such as Figures 1 to 4 As shown, this embodiment provides a housing structure of a photovoltaic inverter, including a housing 1, a mounting plate 11 arranged inside the housing 1, an inverter body 12 arranged on the mounting plate 11, and a clamping plate 2 slidably clamped with the housing 1;

[0030] refer to Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a group of opposite side outer walls outside the shell 1 are connected to be provided with a first fixed side 113 and a limiting side 114, wherein the first fixed side 113 is preferably flush with the bottom of the shell 1, and a gap is provided between the first fixed side 113 and the limiting side 114, and in this embodiment, the first fixed side 113 is provided with a connecting hole, wherein the connecting hole is equipped with a fixing bolt in the prior art, and in this embodiment, the clamping plate 2 is provided with a matching clamping groove corresponding to the first fixed side 113, and the opposite side of the clamping plate 2 is provided with a second fixed side 21, and in this embodiment, the second fixed side 21 is also provided with a connecting hole, and the connecting hole is equipped with The fixing bolts in the prior art, in this embodiment, the second fixed side 21 corresponds to the first fixed side 113 and the limiting side 114 to set an F plate 22 that matches, wherein the F plate 22 includes a clamping block 23 that is correspondingly clamped in the gap between the first fixed side 113 and the limiting side 114, in this embodiment, the top of the F plate 22 is arrayed downward with a plurality of limiting slots 115 for sliding clamping, and the limiting slots 115 in the F plate 22 are provided with elastic clamping blocks 24 for clamping, and in this embodiment, the end of the clamping plate 2 is also connected to a rain shelter 25, wherein the end of the rain shelter 25 is preferably arranged as an arc-shaped structure in the prior art for convenient rain shelter.

[0031] During use, the user can choose whether to fix it directly through the fixing bolts and the connecting holes on the first fixed side 113, or the operator can fix it through the fixing bolts and the connecting holes on the second fixed side 21, and then correspondingly snap-fit ​​the first fixed side 113 and the limiting side 114 in the shell into the clamping block 23 and slide until the elastic clamping block 24 is snap-fitted into the limiting groove 115 to achieve snap-fit ​​installation. By setting the elastic clamping block 24 to be snap-fitted into the limiting groove 115, installation and disassembly are convenient, and maintenance is easy.

[0032] refer to Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a group of opposite inner walls inside the shell 1 are provided with transverse grooves, and in this embodiment, a transverse plate 111 is provided at the end of the mounting plate 11, wherein the transverse plate 111 is adapted to be snap-fitted with the transverse grooves, and a first bolt 112 is provided at the end of the transverse plate 111 to connect and fix with the shell 1.

[0033] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, the mounting plate 11 is provided with a second bolt 121 which is fitted and connected with the bottom of the inverter body 12. In this embodiment, a plurality of heat dissipation fins 13 are arranged in an array at the bottom of the mounting plate 11, wherein the cross section of the heat dissipation fins 13 is preferably arranged as an isosceles triangle structure, wherein the triangular bottom surface of the heat dissipation fins 13 is connected and fixed to the bottom of the mounting plate 11, and in this embodiment, the heat dissipation fins 13 are preferably made of copper material which is convenient for heat conduction in the prior art, and a circulating water pipe 14 is also connected to the bottom of the mounting plate 11, wherein the circulating water pipe 14 is preferably arranged to be cross-laid between every two adjacent heat dissipation fins 13, in this embodiment, a circulating pump box 16 is connected to the water inlet of the circulating water pipe 14, wherein the circulating pump box 16 is provided with a circulating pump for pumping water in the prior art, wherein the water outlet of the circulating water pipe 14 is connected to the water tank 15, and an extraction pipe 17 is connected between the circulating pump box 16 and the water tank 15, and the outer sleeve of the extraction pipe 17 is provided with a rock wool layer.

[0034] In this embodiment, heat dissipation windows 116 are further provided on both sides of the housing 1 at the same level relative to the heat dissipation fins 13 and the circulating water pipe 14 , and a plurality of heat dissipation fans 18 are further provided on the side walls of the housing 1 corresponding to the heat dissipation fins 13 .

[0035] During use, the present embodiment is also provided with a temperature sensor in the prior art and a single chip microcomputer for controlling the cooling fan 18 and the circulation pump. When the temperature sensor detects the set first temperature during use, the single chip microcomputer controls the cooling fan 18 to increase the air circulation speed inside the shell 1 to achieve cooling of the cooling fins 13, thereby achieving cooling of the inverter body 12. When the temperature sensor detects the set second temperature, the single chip microcomputer controls the circulation pump to draw cold water from the water tank 15 along the extraction pipe 17 to the circulating water pipe 14. At this time, the circulating water pipe 14, the cooling fins 13 and the cooling fan 18 are running at the same time, so as to achieve rapid cooling and heat dissipation of the inverter body 12.

[0036] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the shell 1 is connected to a cover plate 19, wherein a sealing gasket 117 is provided between the cover plate 19 and the shell 1 to increase the connection effect and reduce the intrusion of rainwater, and the cover plate 19 is provided with a perspective window 20 corresponding to the inverter body 12, and the operator can directly observe the working status of the inverter body 12 inside the shell 1 through the perspective window 20.

[0037] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A housing structure of a photovoltaic inverter, characterized in that: It comprises a housing (1), a mounting plate (11) arranged inside the housing (1), an inverter body (12) arranged on the mounting plate (11), and a snap-on plate (2) slidably snap-on to the housing (1); A mounting plate (11) is connected to a group of opposite inner walls inside the housing (1), the mounting plate (11) is provided with a second bolt (121) and is fittedly connected to the bottom of the inverter body (12), a plurality of heat dissipation fins (13) for heat conduction and heat dissipation are arranged in an array at the bottom of the mounting plate (11), and a circulating water pipe (14) for rapid cooling is also connected to the bottom of the mounting plate (11), and the circulating water pipe (14) is cross-laid between every two adjacent heat dissipation fins (13).

2. The housing structure of a photovoltaic inverter according to claim 1, characterized in that: The water inlet of the circulating water pipe (14) is connected to a circulating pump box (16), the water outlet of the circulating water pipe (14) is connected to a water tank (15), and an extraction pipe (17) is connected between the circulating pump box (16) and the water tank (15), and the extraction pipe (17) is externally sheathed with a rock wool layer for heat insulation.

3. The housing structure of a photovoltaic inverter according to claim 1, characterized in that: Heat dissipation windows (116) are provided on both sides of the shell (1) at the same level relative to the heat dissipation fins (13) and the circulating water pipe (14), and a plurality of heat dissipation fans (18) for increasing the internal air circulation speed are also provided inside the shell (1).

4. The housing structure of a photovoltaic inverter according to claim 1, characterized in that: A first fixed side edge (113) and a limiting side edge (114) are connected to a group of opposite side outer walls outside the shell (1), and an F plate (22) is connected to the clamping plate (2). The F plate (22) comprises a clamping block (23) correspondingly clamped in a gap between the first fixed side edge (113) and the limiting side edge (114). A plurality of limiting notches (115) for sliding clamping are arranged in an array downwardly from the top of the F plate (22), and elastic clamping blocks (24) for clamping are arranged corresponding to the limiting notches (115) in the F plate (22).

5. The housing structure of a photovoltaic inverter according to claim 4, characterized in that: The first fixed side edge (113) is flush with the bottom of the housing (1), the second fixed side edge (21) is flush with the bottom of the clamping plate (2), and both the first fixed side edge (113) and the second fixed side edge (21) are provided with connection holes for connecting fixing bolts.

6. The housing structure of a photovoltaic inverter according to claim 1, characterized in that: The end of the snap-on plate (2) is also connected to a rain shelter (25) for sheltering from rain, and the end of the rain shelter (25) is arranged in an arc-shaped structure for facilitating sheltering from rain.

7. The housing structure of a photovoltaic inverter according to claim 1, characterized in that: A group of opposite inner walls inside the housing (1) are provided with transverse grooves for installing the mounting plate (11); a transverse plate (111) is provided at the end of the mounting plate (11) to be clamped with the transverse groove; and a first bolt (112) is provided at the end of the transverse plate (111) to be connected and fixed to the housing (1).

8. The housing structure of a photovoltaic inverter according to claim 1, characterized in that: The housing (1) is connected to a cover plate (19), a sealing gasket (117) is provided between the cover plate (19) and the housing (1), and the cover plate (19) is provided with a perspective window (20) for observation corresponding to the inverter body (12).

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