Grid-connected photovoltaic cabinet for outdoor use

Abstract

Photovoltaic grid-connected cabinet for outdoor use, including: a housing component (1), wherein the housing component (1) has a receiving space and an opening (3) which is connected to the receiving space; wherein the opening (3) is located on a side surface of the housing component (1); the opening (3) is covered by a door plate (4) which is pivotally arranged on the housing component (1); an electrical control cabinet (2), wherein the electrical control cabinet (2) is located in the receiving space; the electrical control cabinet (2) is connected to the housing component (1); and a cooling device, wherein the cooling device is arranged in the receiving space; and the cooling device is connected to the housing component (1).

Description

Technical field

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

[0002] The electrical energy from the photovoltaic power generation system is transferred to a power grid via a grid-connected electrical control cabinet. This cabinet contains a reverse current protection device and multiple detection devices. A display unit and a control button are mounted on the cabinet's housing, necessitating indoor installation to protect it from wind and rain. Since the electrical control cabinet generates heat during operation, its installation environment must also provide adequate heat dissipation. Photovoltaic systems are typically installed in factories or on ceilings, and the grid-connected control cabinets are generally installed indoors.

[0003] For outdoor photovoltaic systems, the grid-connected electrical control cabinet must be installed outdoors, and the space for its installation must be constructed outdoors. The construction cycle is lengthy and the costs are high, which impacts the design efficiency of the photovoltaic system. Summary of the utility model

[0004] The purpose of the utility model is to provide a grid-connected photovoltaic cabinet for outdoor use by overcoming the shortcomings of the prior art, according to which a grid control cabinet for an outdoor photovoltaic system must be housed inside a built building.

[0005] The utility model provides for a photovoltaic grid-connected cabinet for outdoor use, which includes the following: a housing component, wherein the housing component has a receiving space and an opening connected to the receiving space; the opening is located on a side surface of the housing component; the opening is covered by a door plate hinged to the housing component; an electrical control cabinet, wherein the electrical control cabinet is located in the receiving space; the electrical control cabinet is connected to the housing component; and a cooling device, wherein the cooling device is located in the receiving space; and the cooling device is connected to the housing component.

[0006] According to the present utility model, a grid-connected outdoor photovoltaic enclosure incorporates an electrical control cabinet for grid connection within a housing component. An operator installs the grid-connected enclosure by lifting the housing component, thus avoiding the need to construct a building to shield the electrical control cabinet outdoors, thereby saving construction costs and reducing construction time. To counteract disturbances caused by temperature increases during operation of the electrical control cabinet, a cooling device is provided within the housing component to maintain a temperature suitable for the operation of the electrical control cabinet. An opening in the housing component facilitates access to the electrical control cabinet for the operator.With the door panel closed, rainwater and mosquitoes can be prevented from entering the electrical control cabinet, thus ensuring the safe operation of the electrical control cabinet.

[0007] Preferably, the housing component comprises a base plate, a top plate, and multiple side plates; the base plate is connected to the side plates; the top plate is connected to the side plates, and adjacent side plates are connected to each other; the electrical control cabinet is connected to the base plate, and the electrical control cabinet and the side plates are spaced apart; and the door plate is hinged to the side plate.

[0008] The enclosure component is a rectangular housing formed by a base plate, a top plate, and interconnected side plates. The rectangular housing has three side plates, and the base plate, side plates, and top plate are welded together. The electrical control cabinet is rigidly attached to the base plate, and a gap is created between the electrical control cabinet and the side plates to ensure proper heat dissipation.

[0009] Preferably, the base plate is provided with a through-hole for grounding, and a grounding column is arranged in the grounding hole; the grounding column is screwed to the base plate; the end of the grounding column is conical; the grounding column is configured to protrude into the ground; and the grounding column is electrically connected to a grounding wire terminal block of the electrical control cabinet.

[0010] Installing the grounding column ensures proper grounding of the electrical control cabinet, guaranteeing its operational safety. After the enclosure is installed, the grounding column is extended by rotating it until it reaches the bottom of the grounding hole, ensuring a secure ground connection for the electrical control cabinet.

[0011] Preferably, the base plate is provided with a plurality of boundary sections arranged around the perimeter of the base plate.

[0012] After the enclosure is installed, the base plate is secured to the ground by pouring concrete to ensure the stability of the electrical control cabinet. The boundary section is a rectangular element positioned at the edge of the base plate, and the poured concrete flows over this boundary section, allowing the enclosure component to be further bonded to the concrete for stability. Once the concrete has cured, the rectangular element is embedded in the concrete, creating a strong bond between the base plate and the concrete.

[0013] Preferably, the base plate is provided with a first wiring opening; the base of the electrical control cabinet is provided with a second wiring opening; and the first wiring opening is aligned with the second wiring opening.

[0014] The electrical control cabinet is fed from the bottom of the housing component through the first wiring opening and the second wiring opening to avoid exposed cables and improve safety.

[0015] Preferably, the cooling device comprises an indoor air conditioning unit and an outdoor air conditioning unit, wherein the indoor air conditioning unit is arranged in the receiving space; the outdoor air conditioning unit is connected to an outer wall of the housing component; the side plate is provided with a through-hole for a pipe; and the indoor air conditioning unit and the outdoor air conditioning unit are connected via the pipe hole.

[0016] In the harsh outdoor environment, the air conditioning system can regulate the temperature and humidity of the recording room, so that the recording room can maintain an environment suitable for the operation of the electrical control cabinet and the safe operation of the electrical control cabinet is ensured.

[0017] Preferably, the cooling device comprises an exhaust fan and a rainproof grille; the side plate is provided with an exhaust duct; the exhaust fan and the rainproof grille are each located on two sides of the exhaust duct; the exhaust fan and the rainproof grille are each connected to the side plate; and the exhaust fan is located in the receiving space.

[0018] The heat generated by the electrical control cabinet is dissipated by the exhaust fan to ensure the cabinet's stable operation. The rainproof grille prevents rainwater from entering the enclosure.

[0019] Preferably, the cover plate is provided with a lifting ring.

[0020] The lifting device connects the lifting ring to raise the enclosure, which facilitates the installation and positioning of the enclosure.

[0021] Preferably, the electrical control cabinet is provided with a control panel on one side of the opening, wherein the control panel is spaced away from the door plate.

[0022] The control panel of the electrical cabinet is positioned facing the door panel to facilitate operation after opening the door. Sufficient space is provided within the cabinet to prevent the door panel from colliding with any buttons or knobs on the control panel.

[0023] Preferably, the recording chamber is equipped with a lighting device that is connected to the housing component.

[0024] A switch is located on the door panel, and the lighting device is switched on after the door panel is opened to facilitate the operation and maintenance of the electrical control cabinet for the operator.

[0025] Compared to the prior art, the present utility model offers the following advantages. 1. According to the present utility model, a grid-connected outdoor photovoltaic cabinet comprises an electrical control cabinet for grid connection housed within an enclosure. An operator installs the grid-connected cabinet by lifting the enclosure, thus avoiding the need to construct a building to shield the electrical control cabinet outdoors, saving construction costs, and reducing construction time. To counteract disturbances caused by temperature increases during operation of the electrical control cabinet, a cooling device is provided within the enclosure to maintain a temperature suitable for the operation of the electrical control cabinet. An opening in the enclosure facilitates access to the electrical control cabinet for the operator.With the door panel closed, rainwater and mosquitoes can be prevented from entering the electrical control cabinet, thus ensuring the safe operation of the electrical control cabinet. 2. The utility model provides for a grid-connected photovoltaic enclosure for outdoor use, featuring a simple structure, ease of manufacture, and convenient installation. The electrical control cabinet is housed and secured within a frame component. The grid-connected enclosure can be quickly installed by lifting a housing component to adapt it to outdoor photovoltaic environments. A suitable operating environment for the electrical control cabinet is maintained within the enclosure by means of a cooling device, ensuring its operational reliability. This shortens the design cycle of outdoor photovoltaic systems and reduces installation costs. It offers significant economic and practical value. Brief description of the drawings Fig. Figure 1 is a schematic structural representation of a photovoltaic grid-connected cabinet for outdoor use of the present utility model; Fig. Figure 2 is a schematic structural representation of an earthing column of the present utility model; Fig. is a schematic structural representation of a first wiring opening of the present utility model; Fig. Figure 4 is a schematic structural representation of a recording room of the present utility model; Fig. is a schematic structural representation of an outdoor air conditioning system of the present utility model; Fig. Figure 6 is a schematic structural representation of an exhaust fan of the present utility model; and Fig. Figure 7 is a schematic structural representation of a rainproof grid of the present utility model. Reference symbol:

[0026] 1 - Housing component, 11 - Cover plate, 12 - Side plate, 13 - Base plate, 2 - Electrical control cabinet, 3 - Opening, 4 - Door plate, 5 - Boundary section, 6 - Lifting ring, 7 - Grounding column, 81 - Air conditioning indoor unit, 82 - Air conditioning outdoor unit, 83 - Exhaust fan, 84 - Rainproof grille, 9 - Lighting device, 10 - First wiring opening. Detailed description

[0027] The present utility model is described in more detail below with reference to specific embodiments. However, it should not be assumed that the scope of the subject matter of the present utility model described above is limited to the following examples, and it is intended that the present utility model falls within the scope of the present utility model.

[0028] In the description of specific embodiments of this utility model, the terms "top", "bottom", "left", "right", "middle", "inside", "outside", and the like, unless otherwise specified, refer to expressions based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product / device / equipment of this utility model is normally used. These orientation or positional relationship terms are used solely to facilitate the description of aspects of this utility model or to simplify the description of specific embodiments for the person skilled in the art, enabling them to quickly understand these aspects.They do not mean or imply that a particular device / part / element must have a particular orientation or be designed and operated in a particular positional relationship, and should therefore not be construed as a limitation of the present utility model.

[0029] Furthermore, the presence of terms such as "horizontal," "vertical," "overhanging," "parallel," and the like does not mean that the respective device / component / element must be absolutely horizontal or vertical, overhanging, or parallel, but rather that it may be slightly inclined or offset. If "horizontal" merely means that its direction is more horizontal than "vertical," this does not mean that the structure must be completely horizontal, but rather that it may be slightly inclined. Alternatively, it can simply be assumed that the respective means / parts / elements arranged in "horizontal," "vertical," "overhanging," "parallel," etc., orientations may be arranged with an error / deviation of ±10%, preferably within ±8%, preferably within ±6%, preferably within ±5%, and preferably within ±4% relative to the respective direction.As long as the relevant device / part / element is within the error / deviation range, its function in the solution of the present utility model can still be fulfilled.

[0030] Furthermore, the terms “first”, “second”, “third” and the like are used in such expressions merely to distinguish between descriptions of the same or similar elements, and are not to be understood as emphasizing or implying a relative importance of the respective element.

[0031] In the description of the embodiments of this utility model, "some", "a multitude" and "several" mean at least two. There can be 2, 3, 4, 5, 6, 7, 8, 9, etc., and there can be more than 9.

[0032] Furthermore, unless expressly stated / restricted / limited otherwise, the terms "provide," "fasten," "connect," "link," "provide with," "place," and "arrange" in the description of the technical solution of this utility model are to be understood in a broader sense. For example, it may be a permanent connection, a detachable connection, or an integral connection, and it may be a fastener commonly used in the trade, such as welding, riveting, bolting, screwing, etc. The connection may be a mechanical connection, an electrical connection, or a communication connection. They may be connected directly or indirectly via an intermediate medium, and communication may take place between the two elements. Design 1

[0033] As in the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig.Figure 7 shows a grid-connected photovoltaic cabinet for outdoor use, comprising a housing component 1, wherein the housing component 1 has a receiving space and an opening 3 connected to the receiving space; the opening 3 is located on a side surface of the housing component 1; the opening 3 is covered with a door plate 4 which is hingedly arranged on the housing component 1; an electrical control cabinet 2, wherein the electrical control cabinet 2 is located in the receiving space; the electrical control cabinet 2 is connected to the housing component 1; and a cooling device, wherein the cooling device is located in the receiving space; and the cooling device is connected to the housing component 1.

[0034] An electrical control cabinet 2 for mains connection is arranged in an enclosure component 1. An operator installs the mains-connected control cabinet by lifting the enclosure component 1, thus avoiding the need to build a structure to shield the electrical control cabinet 2 outdoors, saving construction costs, and reducing construction time. To counteract faults caused by temperature increases during operation of the electrical control cabinet 2, a cooling device is arranged in the enclosure component 1 to maintain the temperature in the enclosure at a level suitable for the operation of the electrical control cabinet 2. The opening 3 arranged in the enclosure component 1 provides convenient access for an operator to operate the electrical control cabinet 2.When the door panel 4 is closed, it can be prevented that rainwater and mosquitoes enter the electrical control cabinet 2, thus ensuring the safe operation of the electrical control cabinet 2.

[0035] In one or more embodiments, the housing component 1 is a rectangular enclosure. The housing component 1 comprises a base plate 13, a top plate 11, and three side plates 12. The base plate 13 is connected to the side plates 12. The top plate 11 is connected to the side plates 12, and adjacent side plates 12 are connected to each other. The base plate 13, the side plates 12, and the top plate 11, when enclosed together, form a receiving space, such that one side face of the rectangular enclosure is provided with an opening 3. The electrical control cabinet 2 is connected to and attached to the base plate 13 to ensure the stability of the electrical control cabinet 2. The electrical control cabinet 2 and the side plates 12 are spaced apart, and sufficient space is provided to allow the heat generated by the electrical control cabinet 2 to dissipate.The door panel 4 is hinged to the side panel 12 to facilitate opening and closing of the door panel 4 for the operator and to simplify the operation and maintenance of the electrical control cabinet 2. In some embodiments, the housing component 1 may have a different shape that is advantageous for the intended use.

[0036] In an alternative embodiment, the base plate 13 is provided with a through-hole for grounding, allowing a grounding column to be inserted into the ground. This column extends into the ground via the grounding column 7 to ensure proper grounding. The grounding column 7 is threaded to the base plate 13. The end of the grounding column 7 is tapered. After the housing component 1 is positioned, the grounding column 7 is rotated into the ground to penetrate it. The tapered end of the grounding column 7 facilitates easy insertion into the ground by an operator. The grounding column 7 is electrically connected to a grounding wire terminal block of the electrical control cabinet 2 to ensure reliable grounding and safe operation of the electrical control cabinet 2.

[0037] In an alternative embodiment, the base plate 13 is provided with a plurality of boundary sections 5, and a plurality of the boundary sections 5 are arranged around the perimeter of the base plate 13. Rectangular plates extending horizontally are arranged on each of the four sides of the rectangular base plate 13. After the concrete has been poured, the rectangular plates are embedded in the concrete, ensuring that the base plate 13 is fixed to the concrete and that the electrical control cabinet 2 is stably fixed.

[0038] In an alternative embodiment, the base plate 13 is provided with a first wiring opening 10, the base of the electrical control cabinet 2 is provided with a second wiring opening, and the first wiring opening 10 is aligned with the second wiring opening. The cables connected to the electrical control cabinet 2 are routed from the base to improve the safety of the electrical control cabinet 2 during operation.

[0039] In an alternative embodiment, the cooling device includes an air conditioning system. The air conditioning system has an indoor air conditioning unit 81 and an outdoor air conditioning unit 82. The indoor air conditioning unit 81 is located in the housing. The outdoor air conditioning unit 82 is connected to the outer wall of the housing component 1. The side plate 12 is provided with a through-hole for pipes. The indoor air conditioning unit 81 and the outdoor air conditioning unit 82 are connected to each other via the pipe hole. In the harsh outdoor environment, the temperature and humidity of the housing can be regulated by the air conditioning system so that the housing can maintain an environment suitable for the operation of the electrical control cabinet 2.

[0040] In an alternative embodiment, the cooling device comprises an exhaust fan 83 and a rainproof grille 84. The side plate 12 is provided with an exhaust duct. The exhaust fan 83 and the rainproof grille 84 are each located on opposite sides of the exhaust duct. The exhaust fan 83 and the rainproof grille 84 are each connected to the side plate 12. The exhaust fan 83 is located in a receiving compartment. The heat generated by the electrical control cabinet 2 is dissipated by the exhaust fan 83 to ensure the stable operation of the electrical control cabinet 2. The rainproof grille 84 prevents rainwater from entering the receiving compartment.

[0041] In an alternative embodiment, a lifting ring 6 is arranged on the cover plate 11. The lifting ring 6 is connected by means of lifting and positioning to facilitate the installation and positional adjustment of the housing component 1 and to improve installation efficiency. In particular, four lifting rings 6 are provided, with the four lifting rings 6 each being arranged at the four corners of the cover plate 11.

[0042] In one or more embodiments, a control panel is arranged on one side of the electrical control cabinet 2, which is located at the opening 3, and the control panel is positioned at a distance from the door panel 4. The control panel of the electrical control cabinet 2 is arranged facing the door panel 4 to facilitate operation of the electrical control cabinet 2 after the door panel 4 has been opened. Sufficient space is provided in the receiving area to prevent the door panel 4 from colliding with a knob or rotary control on the control panel.

[0043] In one or more embodiments, the electrical control cabinet 2 is detachably connected to the housing component 1, which facilitates the replacement of the electrical control cabinet 2. The electrical control cabinet 2 and the housing component 1 are welded and joined to ensure the strength of the connection between the electrical control cabinet 2 and the housing component 1.

[0044] In one or more embodiments, the receiving compartment is provided with a lighting device 9 which is connected to the housing component 1. A switch is arranged on the door panel 4, and the lighting device 9 is switched on after the door panel 4 is opened in order to facilitate the operation and maintenance of the electrical control cabinet 2 by an operator.

[0045] According to the present utility model, a grid-connected photovoltaic enclosure for outdoor use features an electrical control cabinet 2 arranged and mounted within a frame component. The grid-connected enclosure can be quickly positioned by lifting a housing component 1 to adapt it to outdoor photovoltaic environments. A suitable operating environment for the electrical control cabinet 2 is maintained within the enclosure by means of a cooling device to ensure its operational reliability. This shortens the design cycle of the outdoor photovoltaic system and reduces its overall costs.

[0046] The foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model. All modifications, equivalents, and improvements that are consistent with and within the scope of the principles of the utility model shall be included within the scope of the utility model.

[0047] This utility model relates to the field of photovoltaic power generation and, in particular, to a grid-connected photovoltaic cabinet for outdoor use, comprising an enclosure, an electrical control cabinet, and a cooling device. The enclosure has a receiving compartment and an opening connected to it; the opening is located on a side surface of the enclosure; the opening is covered by a door panel that is hinged to the enclosure. The electrical control cabinet is located in the receiving compartment and is connected to the enclosure. The cooling device is also located in the receiving compartment and is connected to the enclosure. The electrical control cabinet is arranged and mounted within a frame component.The grid-connected cabinet is installed by lifting the housing component to adapt it to the outdoor photovoltaic environment and quickly arranging the cabinet. A suitable environment for operating the electrical control cabinet is maintained in the housing by means of a cooling device to ensure the cabinet's operational reliability. The design cycle of the outdoor photovoltaic system is shortened, and the costs of the photovoltaic system are reduced.

Claims

[1] Grid-connected outdoor photovoltaic cabinet, comprising: a housing component (1), wherein the housing component (1) has a receiving space and an opening (3) which is connected to the receiving space; wherein the opening (3) is located on a side surface of the housing component (1); the opening (3) is covered by a door plate (4) which is pivotally arranged on the housing component (1); an electrical control cabinet (2), wherein the electrical control cabinet (2) is located in the receiving space; the electrical control cabinet (2) is connected to the housing component (1); and a cooling device, wherein the cooling device is arranged in the receiving space; and the cooling device is connected to the housing component (1). [2] Photovoltaic grid-connected cabinet for outdoor use according to claim 1, characterized by, that the housing component (1) comprises a base plate (13), a top plate (11) and a plurality of side plates (12); wherein the base plate (13) is connected to the side plates (12); the top plate (11) is connected to the side plates (12), and adjacent side plates (12) are connected to each other; the electrical control cabinet (2) is connected to the base plate (13), and the electrical control cabinet (2) and the side plates (12) are spaced apart from each other; and the door plate (4) is pivotally mounted on the side plate (12). [3] Photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized by, that the base plate (13) is provided with a through-hole for grounding, and a grounding column (7) is arranged in the grounding hole; wherein the grounding column (7) is screwed to the base plate (13); the end of the grounding column (7) is conically shaped; the grounding column (7) is suitable for extending into the ground; and the grounding column (7) is electrically connected to a grounding wire terminal block of the electrical switch cabinet (2). [4] Photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized by , that the base plate (13) is provided with a plurality of boundary sections (5) arranged around the perimeter of the base plate (13). [5] Photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized by, that the base plate (13) is provided with a first wiring opening (10); the base of the electrical control cabinet (2) is provided with a second wiring opening; and the first wiring opening (10) is in aligned connection with the second wiring opening. [6] Photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized by , 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 receiving space; the air conditioning outdoor unit (82) is connected to an outer wall of the housing component (1); the side plate (12) is provided with a through-hole for a pipe; and the air conditioning indoor unit (81) and the air conditioning outdoor unit (82) are connected via the pipe hole. [7] Photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized by, that the cooling device comprises an exhaust fan (83) and a rainproof grille (84); the side plate (12) is provided with an exhaust duct; the exhaust fan (83) and the rainproof grille (84) are each arranged on two sides of the exhaust duct; the exhaust fan (83) and the rainproof grille (84) are each connected to the side plate (12); and the exhaust fan (83) is arranged in the receiving space. [8] Photovoltaic grid-connected cabinet for outdoor use according to claim 2, characterized by , that the cover plate (11) is provided with a lifting ring (6). [9] Photovoltaic grid-connected cabinet for outdoor use according to claim 1, characterized by , that the electrical control cabinet (2) is provided with a control panel on one side of the opening (3), the control panel being spaced away from the door plate (4). [10] Photovoltaic grid-connected cabinet for outdoor use according to any one of claims 1 to 9, characterized by , that the recording chamber is equipped with a lighting device (9) which is connected to the housing component (1).

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