Outdoor photovoltaic grid-connected cabinet

Abstract

The utility model relates to the field of photovoltaic power generation, in particular to an outdoor photovoltaic grid-connected cabinet, which comprises a box body structural member, an electric control cabinet and a cooling device, the box body structural member is provided with an accommodating cavity and an opening communicated with the accommodating cavity, the opening is positioned on the side surface of the box body structural member, the opening is covered with a door plate, and the electric control cabinet is arranged on the door plate. The door plate is hinged with the box body structural member; the electric control cabinet is located in the containing cavity and connected with the box body structural part. The cooling device is located in the containing cavity, and the cooling device is connected with the box body structural part; the electric control cabinet is fixed in the frame body structural member, the installation of the grid-connected cabinet is realized by hoisting the box body structural member, and the grid-connected cabinet can be rapidly arranged in a photovoltaic outdoor environment; an environment suitable for the operation of the electric control cabinet is maintained in the accommodating cavity through the cooling device, so that the operation safety of the electric control cabinet is ensured; the layout period of the outdoor photovoltaic system is shortened, and the photovoltaic layout cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic power generation, in particular to a photovoltaic grid-connected cabinet for outdoor use. Background Art

[0002] The electricity generated by photovoltaic power generation is transmitted to the power grid through the grid-connected control cabinet. The grid-connected control cabinet is equipped with an anti-backflow device and numerous detection devices. The cabinet body of the grid-connected control cabinet is equipped with a display meter and control buttons. The grid-connected control cabinet needs to be installed in an indoor environment to avoid wind and rain. Since the grid-connected control cabinet generates heat during operation, the installation environment of the grid-connected control cabinet is also required to have good heat dissipation. For photovoltaic systems installed in factories or on rooftops, the grid-connected control cabinet is usually installed indoors.

[0003] However, for photovoltaic systems set up in outdoor environments, the grid-connected control cabinet needs to be installed outdoors, and a room for installing the grid-connected control cabinet needs to be built outdoors. This takes a long time to complete and is costly, which affects the efficiency of the photovoltaic system deployment. Utility Model Content

[0004] The purpose of the utility model is to overcome the disadvantage in the prior art that the grid cabinet of the outdoor photovoltaic system needs to be placed in a house, and to provide a photovoltaic grid-connected cabinet for outdoor use.

[0005] The utility model provides a photovoltaic grid-connected cabinet for outdoor use, comprising

[0006] A box structure, the box structure having a receiving cavity and an opening communicating with the receiving cavity, the opening being located on a side of the box structure, the opening being covered by a door panel, and the door panel being hinged to the box structure;

[0007] An electric control cabinet, located in the accommodating cavity and connected to the box structure;

[0008] A cooling device is located in the accommodating cavity and is connected to the box structure.

[0009] The utility model discloses a photovoltaic grid-connected cabinet for outdoor use, in which an electric control cabinet for grid connection is arranged in a box structure. An operator installs the grid-connected cabinet by hoisting the box structure, avoiding the need to build a house outdoors to shield the electric control cabinet, saving construction costs and shortening construction period. In order to cope with malfunctions caused by temperature increase during operation of the electric control cabinet, a cooling device is provided in the accommodating cavity of the box structure, so that the temperature in the accommodating cavity is maintained at a suitable temperature for operation of the electric control cabinet. An opening provided on the box structure facilitates operator operation of the electric control cabinet. When the door panel is closed, rainwater and mosquitoes can be prevented from entering the electric control cabinet, thereby ensuring the safe operation of the electric control cabinet.

[0010] Preferably, the box structure includes a bottom plate, a top plate and several side plates, the bottom plate is connected to the side plates, the top plate is connected to the side plates, adjacent side plates are connected to each other, the electric control cabinet is connected to the bottom plate, and there is a gap between the electric control cabinet and the side plates; the door panel is hinged to the side plates.

[0011] The box structure is a rectangular box consisting of a bottom plate, a top plate and side plates. The rectangular box has three side plates, and the bottom plate, side plates and top plate are connected by welding; the electric control cabinet is connected and fixed to the bottom plate, and there is a gap between the electric control cabinet and the side plates to ensure good heat dissipation of the electric control cabinet.

[0012] Preferably, the base plate is provided with a penetrating grounding hole, a grounding post is provided in the grounding hole, the grounding post is threadedly connected to the base plate, the end of the grounding post is constructed in a conical shape, the grounding post is used to extend into the ground, and the grounding post is electrically connected to the ground terminal block of the electrical control cabinet.

[0013] By setting up grounding poles, the electrical control cabinet can be well grounded to ensure safe operation of the electrical control cabinet; after the box structure is placed in place, the grounding poles are rotated so that the grounding poles extend into the ground to ensure that the electrical control cabinet is well grounded.

[0014] Preferably, the bottom plate is provided with a plurality of limiting portions, and the plurality of limiting portions are arranged around the periphery of the bottom plate.

[0015] After the box structure is in place, the bottom plate is fixed to the ground by pouring concrete to ensure the stability of the electric control cabinet; the limit part is a rectangular part set at the edge of the bottom plate, and the poured concrete overflows the limit part, so that the box structure can be further connected and stably connected with the cast-in-place concrete to ensure installation stability. After the concrete dries, the rectangular part is embedded in the concrete to firmly fix the bottom plate to the concrete.

[0016] Preferably, the bottom plate is provided with a first wiring hole, and the bottom of the electric control cabinet is provided with a second wiring hole, and the first wiring hole is aligned and connected with the second wiring hole.

[0017] The electric control cabinet routes the cables from the bottom of the box structure through the first and second routing holes to avoid cable exposure and improve safety.

[0018] Preferably, the cooling device includes an air-conditioning indoor unit and an air-conditioning outdoor unit, the air-conditioning indoor unit is arranged in the accommodating cavity, the air-conditioning outdoor unit is connected to the outer wall of the box structure, the side panel is provided with a through pipe hole, and the air-conditioning indoor unit and the air-conditioning outdoor unit are connected through the pipe hole.

[0019] In harsh outdoor environments, the air conditioner can adjust the temperature and humidity of the storage chamber to maintain an environment suitable for the operation of the electric control cabinet, ensuring the safe operation of the electric control cabinet.

[0020] Preferably, the cooling device includes an exhaust fan and a rain shield grille, the side panel is provided with an exhaust channel, the exhaust fan and the rain shield grille are respectively located on both sides of the exhaust channel, the exhaust fan and the rain shield grille are respectively connected to the side panel, and the exhaust fan is located in the accommodating cavity.

[0021] The heat generated by the electric control cabinet is discharged by the exhaust fan, so that the electric control cabinet can operate stably; the rain shield grille is set to prevent rainwater from entering the storage cavity.

[0022] Preferably, the top plate is provided with a hanging ring.

[0023] The box structure parts are hoisted by connecting the lifting rings through the lifting machinery, which facilitates the installation and position adjustment of the box structure parts.

[0024] Preferably, the electric control cabinet is provided with a control panel on one side of the opening, and the control panel is spaced apart from the door panel.

[0025] The control panel of the electric control cabinet is set toward the door panel to facilitate the operator to operate the electric control cabinet after opening the door panel; sufficient space is reserved in the accommodation cavity to prevent the door panel from hitting the buttons or knobs on the control panel.

[0026] Preferably, the accommodating cavity is provided with a lighting device, and the lighting device is connected to the box structure.

[0027] A switch is provided on the door panel. When the door panel is opened, the lighting device is powered on, making it easier for operators to operate and maintain the electric control cabinet.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The utility model is a photovoltaic grid-connected cabinet for outdoor use. The electric control cabinet for grid connection is set in a box structure. The operator installs the grid-connected cabinet by hoisting the box structure, avoiding the need to build a house outdoors to cover the electric control cabinet, saving construction costs and shortening construction period. To prevent the electric control cabinet from malfunctioning due to temperature rise during operation, a cooling device is set in the accommodating cavity of the box structure to maintain the temperature in the accommodating cavity at a suitable operating temperature for the electric control cabinet. The opening provided on the box structure facilitates the operator to operate the electric control cabinet. When the door panel is closed, it can prevent rainwater and mosquitoes from entering the electric control cabinet, ensuring the safe operation of the electric control cabinet.

[0030] 2. The utility model provides a photovoltaic grid-connected cabinet for outdoor use, which has a simple structure, is easy to manufacture, and is convenient to lay out. The electric control cabinet is set and fixed in the frame structure, and the grid-connected cabinet is quickly laid out by hoisting the box structure, which is suitable for use in the outdoor photovoltaic environment; a cooling device is used to maintain an environment suitable for the operation of the electric control cabinet in the accommodating cavity, thereby ensuring the safe operation of the electric control cabinet; it shortens the layout period of the outdoor photovoltaic system, saves the photovoltaic layout cost, and has good economic value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a photovoltaic grid-connected cabinet for outdoor use according to the present invention;

[0032] Figure 2 This is a schematic structural diagram of the grounding column of the present utility model;

[0033] Figure 3 This is a schematic structural diagram of the first wiring hole of the utility model;

[0034] Figure 4 This is a schematic structural diagram of the accommodating chamber of the present utility model;

[0035] Figure 5 This is a schematic structural diagram of the outdoor unit of the air conditioner of the present utility model;

[0036] Figure 6 This is a schematic structural diagram of the exhaust fan of the present invention;

[0037] Figure 7 This is a structural diagram of the rain shield grille of the present invention.

[0038] Markings in the figure:

[0039] 1- box structure, 11- top plate, 12- side plate, 13- bottom plate, 2- electric control cabinet, 3- opening, 4- door panel, 5- limit part, 6- lifting ring, 7- grounding column, 81- air conditioner indoor unit, 82- air conditioner outdoor unit, 83- exhaust fan, 84- rain shield grille, 9- lighting device, 10- first wiring hole. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0041] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships, such as "upper," "lower," "left," "right," "center," "inside," and "outside," are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is typically placed when in use. These terms indicating orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians. They do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and therefore should not be construed as limiting the present invention.

[0042] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0043] In addition, the expressions "first", "second", "third", etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0044] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0045] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0046] Example 1

[0047] like Figure 1-Figure 7 As shown, a photovoltaic grid-connected cabinet for outdoor use includes

[0048] A box structure 1, the box structure 1 having a receiving cavity and an opening 3 communicating with the receiving cavity, the opening 3 being located on a side of the box structure 1, the opening 3 being covered by a door panel 4, and the door panel 4 being hinged to the box structure 1;

[0049] An electric control cabinet 2, the electric control cabinet 2 is located in the accommodating cavity, and the electric control cabinet 2 is connected to the box structure 1;

[0050] A cooling device is located in the accommodating cavity and is connected to the box structure 1 .

[0051] The electric control cabinet 2 used for grid connection is set in the box structure 1. The operating personnel install the grid connection cabinet by hoisting the box structure 1, avoiding the need to build a house outdoors to shelter the electric control cabinet 2, saving construction costs and shortening the construction period; in order to deal with malfunctions caused by temperature increase during operation of the electric control cabinet 2, a cooling device is set in the accommodating cavity of the box structure 1 to maintain the temperature in the accommodating cavity at a suitable temperature for the operation of the electric control cabinet 2; the opening 3 set on the box structure 1 facilitates the operation of the electric control cabinet 2 by the operating personnel; when the door panel 4 is closed, it can prevent rainwater and mosquitoes from entering the electric control cabinet 2, ensuring the safe operation of the electric control cabinet 2.

[0052] In one or several embodiments, the box structure 1 is a rectangular box, and the box structure 1 includes a bottom plate 13, a top plate 11 and three side plates 12. The bottom plate 13 is connected to the side plates 12, and the top plate 11 is connected to the side plates 12. Adjacent side plates 12 are connected to each other. The bottom plate 13, the side plates 12 and the top plate 11 form a accommodating cavity, so that the side of the rectangular box has an opening 3. The electric control cabinet 2 is connected and fixed to the bottom plate 13 to ensure the stability of the electric control cabinet 2. There is a gap between the electric control cabinet 2 and the side plates 12, and sufficient space is reserved for the heat generated by the electric control cabinet 2 to dissipate; the door panel 4 is hinged to the side plate 12, which is convenient for the operator to open and close the door panel 4, and to facilitate the operation and maintenance of the electric control cabinet 2; in some embodiments, the box structure 1 can be of different shapes for easy use.

[0053] In an optional embodiment, the base plate 13 is provided with a through grounding hole, which is convenient for setting a grounding column for inserting into the ground in the grounding hole, and extending into the ground through the grounding column 7 to ensure good grounding. The grounding column 7 is threadedly connected to the base plate 13, and the end of the grounding column 7 is constructed into a cone shape. After the box structure 1 is placed in place, the grounding column 7 is rotated to move toward the ground and penetrate into the ground. The bottom end of the grounding column 7 is conical, which makes it easy for the operator to penetrate the ground. The grounding column 7 is electrically connected to the ground terminal block of the electric control cabinet 2, thereby ensuring that the electric control cabinet 2 is reliably grounded and the electric control cabinet 2 is safe to use.

[0054] In an optional embodiment, the base plate 13 is provided with a plurality of limiting portions 5, and the plurality of limiting portions 5 are arranged around the periphery of the base plate 13; horizontally extending rectangular plates are respectively provided on the four sides of the rectangular base plate 13, and after the concrete is poured, the rectangular plates are embedded in the concrete to ensure that the base plate 13 is fixed on the concrete and the electrical control cabinet 2 is stably fixed.

[0055] In an optional embodiment, a first wiring hole 10 is opened at the bottom plate 13, and a second wiring hole is opened at the bottom of the electric control cabinet 2. The first wiring hole 10 is aligned and connected with the second wiring hole; the cables connected to the electric control cabinet 2 are routed underground, thereby improving the safety of the electric control cabinet 2.

[0056] In an optional embodiment, the cooling device includes an air conditioner, which has an indoor air conditioner unit 81 and an outdoor air conditioner unit 82. The indoor air conditioner unit 81 is arranged in the accommodating cavity, and the outdoor air conditioner unit 82 is connected to the outer wall of the box structure 1. The side panel 12 has a through pipe hole, and the indoor air conditioner unit 81 and the outdoor air conditioner unit 82 are connected through the pipe hole; in an outdoor environment where the operating environment is relatively harsh, the temperature and humidity of the accommodating cavity can be adjusted by the air conditioner, so that the environment in the accommodating cavity maintains a suitable environment for the operation of the electrical control cabinet 2.

[0057] In an optional embodiment, the cooling device includes an exhaust fan 83 and a rain shield grille 84. The side panel 12 is provided with an exhaust channel. The exhaust fan 83 and the rain shield grille 84 are respectively located on both sides of the exhaust channel. The exhaust fan 83 and the rain shield grille 84 are respectively connected to the side panel 12. The exhaust fan 83 is located in the accommodating cavity. The heat generated by the electrical control cabinet 2 is discharged by the exhaust fan 83, so that the electrical control cabinet 2 runs stably. By setting the rain shield grille 84, rainwater is prevented from entering the accommodating cavity.

[0058] In an optional embodiment, a lifting ring 6 is provided on the top plate 11. By lifting and connecting the lifting ring 6, the box structure 1 is easier to install and adjust the position, thereby improving the installation efficiency. Specifically, four lifting rings 6 are provided, and the four lifting rings 6 are respectively provided at the four corners of the top plate 11.

[0059] In one or several embodiments, the electric control cabinet 2 is provided with a control panel on one side of the opening 3, and the control panel is spaced apart from the door panel 4; the control panel of the electric control cabinet 2 is set toward the door panel 4, so that the operator can operate the electric control cabinet 2 after opening the door panel 4; sufficient space is reserved in the accommodating cavity to prevent the door panel 4 from hitting the buttons or knobs on the control panel.

[0060] In one or several embodiments, the electric control cabinet 2 is detachably connected to the box structure 1 to facilitate replacement of the electric control cabinet 2 ; the electric control cabinet 2 is welded to the box structure 1 to ensure the connection strength between the electric control cabinet 2 and the box structure 1 .

[0061] In one or several embodiments, the accommodating cavity is provided with a lighting device 9, which is connected to the box structure 1; a switch is provided on the door panel 4, and the lighting device 9 is powered on after the door panel 4 is opened, which makes it easier for operators to operate and maintain the electrical control cabinet 2.

[0062] The utility model is a photovoltaic grid-connected cabinet for outdoor use, in which an electric control cabinet 2 is fixed in a frame structure, and the grid-connected cabinet is quickly deployed by hoisting the box structure 1, so as to adapt to the use in the outdoor photovoltaic environment; a cooling device is used to maintain an environment suitable for the operation of the electric control cabinet 2 in the accommodating cavity, thereby ensuring the safe operation of the electric control cabinet 2; the deployment period of the outdoor photovoltaic system is shortened, and the photovoltaic deployment cost is saved.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic grid-connected cabinet for outdoor use, characterized in that: include A box structure (1), the box structure (1) having a receiving cavity and an opening (3) communicating with the receiving cavity, the opening (3) being located on a side of the box structure (1), the opening (3) being covered by a door panel (4), the door panel (4) being hinged to the box structure (1); An electric control cabinet (2), the electric control cabinet (2) being located in the accommodating cavity, and the electric control cabinet (2) being connected to the box structure (1); A cooling device is located in the accommodating cavity and is connected to the box structure (1).

2. The outdoor photovoltaic grid-connected cabinet according to claim 1, characterized in that: The box structure (1) includes a bottom plate (13), a top plate (11) and a plurality of side plates (12); the bottom plate (13) is connected to the side plates (12); the top plate (11) is connected to the side plates (12); adjacent side plates (12) are connected to each other; the electric control cabinet (2) is connected to the bottom plate (13); and there is a gap between the electric control cabinet (2) and the side plates (12); and the door panel (4) is hinged to the side plates (12).

3. The outdoor photovoltaic grid-connected cabinet according to claim 2, characterized in that: The base plate (13) is provided with a grounding hole extending therethrough, a grounding post (7) is provided in the grounding hole, the grounding post (7) is threadedly connected to the base plate (13), the end of the grounding post (7) is constructed in a conical shape, the grounding post (7) is used to extend into the ground, and the grounding post (7) is electrically connected to the ground terminal block of the electric control cabinet (2).

4. The photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized in that: The bottom plate (13) is provided with a plurality of limiting portions (5), and the plurality of limiting portions (5) are arranged around the periphery of the bottom plate (13).

5. The outdoor photovoltaic grid-connected cabinet according to claim 2, characterized in that: The bottom plate (13) is provided with a first wiring hole (10), and the bottom of the electric control cabinet (2) is provided with a second wiring hole, wherein the first wiring hole (10) is aligned and connected to the second wiring hole.

6. The outdoor photovoltaic grid-connected cabinet according to claim 2, characterized in that: The cooling device comprises an air-conditioning indoor unit (81) and an air-conditioning outdoor unit (82), wherein the air-conditioning indoor unit (81) is arranged in the accommodating cavity, and the air-conditioning outdoor unit (82) is connected to the outer wall of the box structure (1), and the side plate (12) is provided with a through-hole, and the air-conditioning indoor unit (81) and the air-conditioning outdoor unit (82) are connected through the hole.

7. The outdoor photovoltaic grid-connected cabinet according to claim 2, characterized in that: The cooling device comprises an exhaust fan (83) and a rain shield grille (84); the side panel (12) is provided with an exhaust passage; the exhaust fan (83) and the rain shield grille (84) are respectively located on both sides of the exhaust passage; the exhaust fan (83) and the rain shield grille (84) are respectively connected to the side panel (12); and the exhaust fan (83) is located in the accommodating cavity.

8. The outdoor photovoltaic grid-connected cabinet according to claim 2, characterized in that: The top plate (11) is provided with a hanging ring (6).

9. The photovoltaic grid-connected cabinet for outdoor use according to claim 1, characterized in that: The electric control cabinet (2) is provided with a control panel on one side of the opening (3), and the control panel is spaced apart from the door panel (4).

10. The outdoor photovoltaic grid-connected cabinet according to any one of claims 1 to 9, characterized in that: The accommodating cavity is provided with a lighting device (9), and the lighting device (9) is connected to the box structure (1).

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