Photovoltaic grid-connected and off-grid switching control box insulation protection mechanism

Abstract

The utility model relates to the technical field of distribution boxes, and discloses a photovoltaic grid-connected and off-grid switching control box insulation protection mechanism comprising a box body assembly, the top of the box body assembly is provided with a wall hanging assembly, the front side of the box body assembly is provided with a locking sealing door assembly, and the box body assembly is internally provided with an insulation power distribution device. According to the utility model, the insulation power distribution device is installed on the device, so that when the device is used, the insulation power distribution device can insulate the internal control panel, a certain protection effect is provided, and a convenient dismounting effect is provided during installation.

Description

Technical Field

[0001] This utility model relates to the technical field of distribution boxes, specifically to an insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box. Background Technology

[0002] A photovoltaic (PV) grid-connected / off-grid switching control box is a control box in a photovoltaic power station responsible for the grid-connected and off-grid operation of the power generation system. Its main functions include PV power generation control, grid connection control, and data acquisition. By controlling the inverter's output power, the grid-connected / off-grid control box enables the power generation system to control and manage the PV panels, connect to the grid, monitor the grid status in real time, and control the grid connection or disconnection of the PV power station. During use, insulation protection measures must be implemented for the internal components of the box to ensure safe operation.

[0003] Application number CN202321924467.6 discloses a distribution box with a protective structure. The technical solution includes: an insulating outer cover, a distribution box, and an inner box. The inner box is installed on the inner surface of the insulating outer cover. A corrugated plate is installed on the outer surface of the inner box at a gap in the insulating outer cover. A motor B is installed on one side of the top of the inner box, and a rotating shaft is installed on the output shaft of motor B. The distribution box is sleeved on the bottom of the insulating outer cover. Connecting seats are installed on both sides of the distribution box near the top, and an insulating base plate is installed at the bottom of the distribution box. This distribution box with a protective structure solves the problem that existing distribution boxes mainly have their protective mechanisms located on the sides of the distribution box. Because the distribution box is made of stainless steel, it is easy for the distribution box to become energized in the event of a leakage, affecting the electrical safety of the operating environment. This improved insulation performance of the distribution box ensures the electrical safety of the operating environment.

[0004] Although the above-mentioned utility model improves the insulation performance of the distribution box by using a stainless steel plate, which makes the distribution box prone to becoming energized in the event of a leakage, thus affecting the electrical safety of the usage environment, it has a drawback: the outer insulating shell of the device cannot be easily disassembled during use. Utility Model Content

[0005] The purpose of this utility model is to provide an insulation protection mechanism for a photovoltaic grid-connected and off-grid switching control box to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is an insulation protection mechanism for a photovoltaic grid-connected and off-grid switching control box, including a box assembly. A wall-mounting assembly is installed on the top of the box assembly, and a locking and sealing door assembly is installed on the front side of the box assembly. Meanwhile, an insulated power distribution device is installed inside the box assembly.

[0008] Furthermore, the housing assembly includes a main housing, a magnet is installed in the middle of the top of the main housing, and a mounting cavity is opened in the middle of the front side, with a sealing frame installed around the outer periphery of the mounting cavity.

[0009] Furthermore, the wall-mounted assembly includes a mounting base, on the top rear side of the mounting base is a mounting side plate, and the mounting base is installed on both sides of the top of the main body. A fixing screw hole is provided in the middle of the mounting side plate.

[0010] Furthermore, the locking and sealing door assembly includes a sealing door panel, a movable hinge is installed on one side of the sealing door panel, and a locking component is installed in the middle of the sealing door panel. A lock hole is opened on the inner side of the locking component, and the lock hole is opened in the middle of the inner side of the sealing door panel. The movable hinge is installed on one side of the main body.

[0011] Furthermore, the insulated power distribution device includes an insulated box, which is installed inside the mounting cavity. A control board is installed on the inner side of the middle of the insulated box, and adjustable latches are installed diagonally around the perimeter of the insulated box. An insulated cover is installed on the front side of the insulated box, which is installed inside the adjustable latches. A silicone sealing groove is opened in the middle of the insulated cover, and the control board is installed inside the silicone sealing groove.

[0012] Furthermore, the locking assembly includes a brake handle, which is installed in the middle of the front side of the sealing door panel, and a rotating gear is installed on the rear side of the brake handle. A rack is installed on the top of the rotating gear, a movable plate is installed on the inner side of the rack, and a fixed lock plate is installed at the end of the movable plate, with the fixed lock plate corresponding to the position of the lock hole.

[0013] Furthermore, the adjusting latch includes a fixing plate, which is installed diagonally on the insulation box, and a rotating plate is installed on the top of the fixing plate, and a latch plate is installed on one side of the top of the rotating plate.

[0014] This utility model has the following beneficial effects:

[0015] (1) This utility model is an insulation protection mechanism for a photovoltaic grid-connected and off-grid switching control box. By installing an insulation distribution device on the device, the internal control board can be insulated by the insulation distribution device when using the device, providing a certain degree of protection. It also provides convenient disassembly and assembly during installation.

[0016] (2) This utility model is an insulation protection mechanism for a photovoltaic grid-connected and off-grid switching control box. By installing a locking and sealing door assembly on the device, the device can be easily locked during use, and it has stable operability.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the insulation protection mechanism of a photovoltaic grid-connected / off-grid switching control box according to the present invention;

[0020] Figure 2 This is a side view of the insulation protection mechanism of a photovoltaic grid-connected / off-grid switching control box according to the present invention.

[0021] Figure 3 This is a schematic diagram of the locking component structure of the insulation protection mechanism of a photovoltaic grid-connected / off-grid switching control box according to the present invention;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the insulation distribution device of the insulation protection mechanism of the photovoltaic grid-connected and off-grid switching control box of this utility model;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of section A in the middle;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Box assembly; 2. Wall-mounted assembly; 3. Locking and sealing door assembly; 4. Insulated power distribution device; 101. Main box; 102. Magnet; 103. Sealing frame; 104. Mounting cavity; 201. Mounting base; 202. Mounting side plate; 203. Fixing screw hole; 301. Sealing door panel; 302. Movable hinge; 303. Locking assembly; 304. Lock hole; 401. Insulation box; 402. Control board; 403. Adjustable latch; 404. Insulation cover; 405. Silicone sealing groove; 3031. Brake handle; 3032. Rotating gear; 3033. Rack; 3034. Moving plate; 3035. Fixed lock plate; 4031. Fixed plate; 4032. Rotating plate; 4033. Lock plate. Detailed Implementation

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Please see Figure 1 - Figure 5 As shown, this utility model is an insulation protection mechanism for a photovoltaic grid-connected and off-grid switching control box, including a box assembly 1, a wall-mounted assembly 2 installed on the top of the box assembly 1, a locking and sealing door assembly 3 installed on the front side of the box assembly 1, and an insulation power distribution device 4 installed inside the box assembly 1.

[0028] By installing an insulating power distribution device 4 on the device, the internal control board can be insulated by the insulating power distribution device 4 when using the device, providing a certain degree of protection, and providing convenient disassembly and assembly during installation.

[0029] The enclosure assembly 1 includes a main enclosure 101. A magnet 102 is installed in the middle of the top of the main enclosure 101, and an installation cavity 104 is opened in the middle of the front side. A sealing frame 103 is installed around the outer periphery of the installation cavity 104. The mounting base 201 is installed on both sides of the top of the main enclosure 101. Then, the main enclosure 101 is fixed to the wall through the fixing screw holes 203 on the top mounting side plate 202 of the mounting base 201. The main enclosure 101 can be installed and fixed. Then, the insulating power distribution device 4 is installed inside the installation cavity 104. Finally, the sealing door panel 301 is installed on one side of the main enclosure 101 through the movable hinge 302. The overall device frame is then completed.

[0030] The wall-mounted component 2 includes a mounting base 201, a mounting side plate 202 is mounted on the top rear side of the mounting base 201, and the mounting base 201 is mounted on both sides of the top of the main housing 101. A fixing screw hole 203 is provided in the middle of the mounting side plate 202.

[0031] The locking and sealing door assembly 3 includes a sealing door panel 301. A movable hinge 302 is installed on one side of the sealing door panel 301, and a locking assembly 303 is installed in the middle of the sealing door panel 301. A lock hole 304 is opened on the inner side of the locking assembly 303. The lock hole 304 is located in the middle of the inner side of the sealing door panel 301. The movable hinge 302 is installed on one side of the main body 101. When closed, the sealing frame 103 and the sealing door panel 301 can form a relatively sealed space, and then the locking assembly 303 will lock the door.

[0032] The insulated power distribution device 4 includes an insulation box 401, which is installed inside the mounting cavity 104. A control board 402 is installed on the inner side of the middle of the insulation box 401, and an adjustment latch 403 is installed diagonally around the periphery of the insulation box 401. An insulation cover 404 is installed on the front side of the insulation box 401, which is installed inside the adjustment latch 403. A silicone sealing groove 405 is opened in the middle of the insulation cover 404, and the control board 402 is installed inside the silicone sealing groove 405.

[0033] The locking assembly 303 includes a brake handle 3031, which is installed in the middle of the front side of the sealing door panel 301. A rotating gear 3032 is installed on the rear side of the brake handle 3031. A rack 3033 is installed on the top of the rotating gear 3032. A movable plate 3034 is installed on the inner side of the rack 3033. A fixed locking plate 3035 is installed at the end of the movable plate 3034. The fixed locking plate 3035 corresponds to the position of the lock hole 304. When locking, the rotation of the brake handle 3031 is controlled to drive the rotation of the inner rotating gear 3032. Then, the rotation of the rotating gear 3032 drives the rack 3033, which is limited at the top, to move. The movement of the rack 3033 drives the movable plate 3034 at the end to move outward until the fixed locking plate 3035 on the outer side of the movable plate 3034 is pushed out through the lock hole 304 and limited to the inner wall of the main body 101, thus achieving the effect of limiting and locking.

[0034] The adjusting latch 403 includes a fixing plate 4031, which is installed diagonally on the insulation box 401. A rotating plate 4032 is installed on the top of the fixing plate 4031, and a latch plate 4033 is installed on one side of the top of the rotating plate 4032. By rotating the silicone-coated latch plate 4033, the inner insulating cover 404 can be removed, so that the control board 402 inside the insulation box 401 can be inspected and maintained.

[0035] When using this device, first install the wall-mounting assembly 2 on the top and bottom of the housing assembly 1. Then, install the locking and sealing door assembly 3 on the front of the housing assembly 1. Finally, install the insulating power distribution device 4 inside the housing assembly 1. This completes the overall assembly. When using the device, first install the mounting base 201 on both sides of the top of the main housing 101. Then, fix the main housing 101 to the wall using the fixing screw holes 203 on the top mounting side plate 202 of the mounting base 201. This secures the main housing 101. Next, install the insulating power distribution device 4 inside the mounting cavity 104. Then, install the sealing door panel 301 on one side of the main housing 101 using the movable hinge 302. This completes the overall device frame. When closing, the sealing frame 103 and the sealing door panel 301... This allows for the formation of a relatively sealed space when closed. The locking assembly 303 then locks the device. Locking is achieved by first rotating the brake handle 3031, which in turn rotates the inner rotating gear 3032. The rotation of the gear 3032 then moves the top-limited rack 3033. This movement of the rack 3033 moves the end-mounted moving plate 3034 outwards until the outer locking plate 3035 is pushed out through the locking hole 304 and locked within the inner wall of the main housing 101, achieving a locking effect. When the internal insulation distribution device 4 needs maintenance, the inner insulation cover 404 can be removed by rotating the silicone-coated locking plate 4033, allowing maintenance of the control board 402 inside the insulation box 401.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box, comprising a box assembly (1), characterized in that: The top of the enclosure assembly (1) is equipped with a wall-mounting assembly (2), and the front of the enclosure assembly (1) is equipped with a locking and sealing door assembly (3). Meanwhile, an insulated power distribution device (4) is installed inside the enclosure assembly (1).

2. The insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box according to claim 1, characterized in that: The housing assembly (1) includes a main housing (101), a magnet (102) is installed in the middle of the top of the main housing (101), and an installation cavity (104) is opened in the middle of the front side. A sealing frame (103) is installed around the outer periphery of the installation cavity (104).

3. The insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box according to claim 1, characterized in that: The wall-mounted assembly (2) includes a mounting base (201), and a mounting side plate (202) is installed on the top rear side of the mounting base (201). The mounting base (201) is installed on both sides of the top of the main body (101), and a fixing screw hole (203) is provided in the middle of the mounting side plate (202).

4. The insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box according to claim 1, characterized in that: The locking and sealing door assembly (3) includes a sealing door panel (301), a movable hinge (302) is installed on one side of the sealing door panel (301), and a locking assembly (303) is installed in the middle of the sealing door panel (301). A lock hole (304) is opened on the inner side of the locking assembly (303), and the lock hole (304) is opened in the middle of the inner side of the sealing door panel (301). The movable hinge (302) is installed on one side of the main body (101).

5. The insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box according to claim 1, characterized in that: The insulating power distribution device (4) includes an insulating box (401), which is installed inside the mounting cavity (104). A control board (402) is installed on the inner side of the middle of the insulating box (401), and an adjusting latch (403) is installed diagonally around the periphery of the insulating box (401). An insulating cover (404) is installed on the front side of the insulating box (401), which is installed inside the adjusting latch (403). A silicone sealing groove (405) is opened in the middle of the insulating cover (404), and the control board (402) is installed inside the silicone sealing groove (405).

6. The insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box according to claim 4, characterized in that: The locking assembly (303) includes a brake handle (3031), which is installed in the middle of the front side of the sealing door panel (301). A rotating gear (3032) is installed on the rear side of the brake handle (3031). A rack (3033) is installed on the top of the rotating gear (3032). A movable plate (3034) is installed on the inner side of the rack (3033). A fixed lock plate (3035) is installed at the end of the movable plate (3034). The fixed lock plate (3035) corresponds to the position of the lock hole (304).

7. The insulation protection mechanism for a photovoltaic grid-connected / off-grid switching control box according to claim 5, characterized in that: The adjusting latch (403) includes a fixing plate (4031), which is installed diagonally on the insulation box (401), and a rotating plate (4032) is installed on the top of the fixing plate (4031), and a latch plate (4033) is installed on one side of the top of the rotating plate (4032).

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