Waterproof and explosion-proof photovoltaic distribution box

Abstract

The utility model discloses a waterproof and explosion-proof photovoltaic distribution box which comprises a box body, a top plate and a bottom plate. A mounting plate is arranged in the box body; the box body comprises a front plate, a rear plate and two side plates which are integrally formed by die casting, upper connecting plates are arranged at the top ends of the front plate, the rear plate and the two side plates, and lower connecting plates are arranged at the bottom ends of the front plate, the rear plate and the two side plates; a box door is fixedly mounted on the front plate; the top plate is welded with the upper connecting plate; two sides and the rear part of the top plate form upper hoisting edges; upper mounting holes are uniformly distributed in the upper hoisting edge, and hoisting holes are formed in the two ends of the upper hoisting edge; the bottom plate is welded with the lower connecting plate; lower hoisting edges are formed on two sides and the rear part of the bottom plate; and lower mounting holes are uniformly distributed in the lower hoisting edge. The photovoltaic distribution box is reasonable in structural design, convenient to install and good in waterproof and explosion-proof effects.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a waterproof and explosion-proof photovoltaic distribution box. Background Art

[0002] Photovoltaic distribution boxes are commonly used in distributed photovoltaic systems as the distribution control dividing point between photovoltaic battery groups and the main power network. Their main functions include power isolation, short-circuit protection, lightning protection, and over- and under-voltage protection. Photovoltaic distribution boxes used in many scenarios have high requirements for waterproof and explosion-proof levels. Existing waterproof and explosion-proof photovoltaic distribution boxes often use high-strength alloy materials or increase the thickness of steel plates to ensure their explosion-proof levels, which either increases costs or increases the weight of the box, making installation inconvenient. For this reason, this application designs a waterproof and explosion-proof photovoltaic distribution box, which improves structural strength through structural optimization design, and uses thinner ordinary steel plates to achieve a higher explosion-proof level, which is easy to install. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a waterproof and explosion-proof photovoltaic distribution box with reasonable structural design, convenient installation, and good waterproof and explosion-proof effect.

[0004] The utility model provides a waterproof and explosion-proof photovoltaic distribution box, comprising a box body, a top plate and a bottom plate;

[0005] A mounting plate for mounting electrical components is fixedly arranged in the box; the box comprises a front plate, a rear plate and two side plates, and the front plate, the rear plate and the two side plates are integrally die-cast;

[0006] The top ends of the front plate, the rear plate and the two side plates are bent outwards by 90 degrees to form upper connecting plates, and the bottom ends of the front plate, the rear plate and the two side plates are bent outwards by 90 degrees to form lower connecting plates; a doorway is provided on the front plate, a door frame is fixedly provided on the periphery of the doorway, a box door is fixedly installed on the outer side of the door frame by screws distributed along the circumference, and a rubber sealing strip is provided between the box door and the door frame;

[0007] The bottom surface of the top plate is respectively welded to each of the upper connecting plates, and the corresponding upper connecting plates protrude from both sides and the rear of the top plate to form an upper hanging edge; the upper hanging edge is evenly provided with upper mounting holes along its length direction, and both ends of the upper hanging edge are provided with hanging holes;

[0008] The top surface of the bottom plate is respectively welded to each of the lower connecting plates, and the corresponding lower connecting plates protrude from both sides and the rear of the bottom plate to form a lower hanging edge; the lower hanging edge is evenly distributed with lower mounting holes along its length direction.

[0009] Furthermore, one side of the box door is hinged to the door frame, and the other side is fixedly provided with a handle.

[0010] Furthermore, a horizontal partition is fixedly provided in the box body, and the mounting plates are fixedly provided on the rear plate in the box body above and below the partition.

[0011] Furthermore, a storage column is fixedly provided on the inner wall surface of the box door.

[0012] Furthermore, a plurality of waterproof cable glands are fixedly connected to the bottom of the base plate.

[0013] Furthermore, the surfaces of the box body, top plate, bottom plate, mounting plate and box door are all sprayed with an anti-corrosion coating.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The photovoltaic distribution box of the utility model comprises a box body, a top plate and a bottom plate; the box body is formed by bending a piece of steel plate, the top plate is welded to the box body through an upper connecting plate, and the bottom plate is welded to the box body through a lower connecting plate. The welding area is large, the waterproof effect is good, and the structural strength of the welding part is high. The use of steel plates of the same thickness can effectively improve the structural strength of the box body, and the waterproof and explosion-proof effects are good.

[0016] An upper hoisting edge is formed on both sides and the rear of the top plate, and an upper mounting hole and a hoisting hole are arranged on the upper hoisting edge, and a lower mounting hole is arranged on the lower hoisting edge; the photovoltaic distribution box is hoisted through the hoisting holes, and the photovoltaic distribution box is installed on a supporting structure such as a supporting frame arranged according to the installation position through the upper mounting holes and the lower mounting holes, which is convenient to install and firmly fixed.

[0017] The setting of the upper mounting holes and the lower mounting holes avoids welding the connection structures such as the hanging ears on the box body. The structural strength of the welding parts is relatively low, so the fewer the welding parts, the higher the structural strength of the box body. The installation structure of the upper mounting holes and the lower mounting holes ensures the overall structural strength of the box body.

[0018] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 This is a structural diagram of a waterproof and explosion-proof photovoltaic distribution box;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of a waterproof and explosion-proof photovoltaic distribution box;

[0022] Figure 3 This is a structural diagram of a waterproof and explosion-proof photovoltaic distribution box with its door open;

[0023] Figure 4 This is a schematic diagram of the top view of the waterproof and explosion-proof photovoltaic distribution box.

[0024] Numbers in the figure: 1, box body; 2, top plate; 3, bottom plate; 4, mounting plate; 5, box door; 6, partition;

[0025] 11. front panel; 12. rear panel; 13. side panel; 14. upper connecting panel; 15. lower connecting panel; 16. door frame;

[0026] 21. Upper hanging edge; 22. Upper mounting hole; 23. Hoisting hole;

[0027] 31. Lower hanging edge; 32. Lower mounting hole; 33. Waterproof gland;

[0028] 51. Screws; 52. Rubber sealing strip; 53. Handle; 54. Storage bar. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] Please refer to Figure 1 to Figure 4 , the embodiment of the utility model provides a waterproof and explosion-proof photovoltaic distribution box, comprising a box body 1, a top plate 2 and a bottom plate 3;

[0032] A mounting plate 4 for mounting electrical components is fixedly arranged in the box body 1; the box body 1 comprises a front plate 11, a rear plate 12 and two side plates 13, and the front plate 11, the rear plate 12 and the two side plates 13 are integrally die-cast;

[0033] The top ends of the front plate 11, the rear plate 12 and the two side plates 13 are bent outwards by 90 degrees to form an upper connecting plate 14, and the bottom ends of the front plate 11, the rear plate 12 and the two side plates 13 are bent outwards by 90 degrees to form a lower connecting plate 15; a doorway is provided on the front plate 11, and a door frame 16 is fixedly provided on the outer periphery of the doorway. A box door 5 is fixedly installed on the outer side of the door frame 16 by screws 51 distributed along the circumferential direction, and a rubber sealing strip 52 is provided between the box door 5 and the door frame 16;

[0034] The bottom surface of the top plate 2 is welded to each upper connecting plate 14, and the corresponding upper connecting plates 14 protrude from both sides and the rear of the top plate 2 to form an upper hanging edge 21; the upper hanging edge 21 is evenly provided with upper mounting holes 22 along its length direction, and both ends of the upper hanging edge 21 are provided with hanging holes 23;

[0035] The top surface of the bottom plate 3 is welded to each lower connecting plate 15 , and the corresponding lower connecting plates 15 protrude from both sides and the rear of the bottom plate 3 to form a lower hanging edge 22 ; the lower hanging edge 22 is evenly distributed with lower mounting holes 32 along its length direction.

[0036] In this embodiment, the box body 1 is integrally die-cast and has high structural strength.

[0037] The top plate 2 is welded to the box body 1 through the upper connecting plate 14, and the bottom plate 3 is welded to the box body 1 through the lower connecting plate 15. The welding area is large, the waterproof effect is good, and the structural strength of the welding part is high. Using steel plates of the same thickness can effectively improve the structural strength of the box body 1 and has good waterproof and explosion-proof effects.

[0038] The photovoltaic distribution box is hoisted through the hoisting hole 23 on the upper hoisting edge 21, and the photovoltaic distribution box is installed on a supporting structure such as a support frame set according to the installation position through the upper installation hole 22 and the lower installation hole 32. The installation is convenient and the fixation is stable.

[0039] In a preferred embodiment, if Figure 1 and Figure 3 As shown, one side of the door 5 is hinged to the door frame 16 , and a handle 53 is fixedly provided on the other side to facilitate opening of the door 5 .

[0040] In a preferred embodiment, if Figure 2 and Figure 3 As shown, a horizontal partition 6 is fixedly provided in the box body 1 for accommodating electrical components; mounting plates 4 are fixedly provided above and below the partition 6 on the rear plate 12 in the box body 1 for accommodating electrical components.

[0041] In a preferred embodiment, if Figure 3 As shown, a storage column 54 is fixedly provided on the inner wall surface of the box door 5. When the electrical components in the box body 1 are inspected and repaired, tools and maintenance records are placed in the storage column 54, which improves the convenience of maintenance.

[0042] In a preferred embodiment, if Figure 1 As shown, a plurality of waterproof glands 33 are fixedly connected to the bottom surface of the bottom plate 3, and the cables pass through the waterproof glands 33 and are connected to the electrical components in the box body 1, so that the waterproof effect is good.

[0043] In a preferred embodiment, the surfaces of the box body 1, the top plate 2, the bottom plate 3, the mounting plate 4 and the box door 5 are all sprayed with an anti-corrosion coating, which has a good anti-corrosion effect and increases the service life of the photovoltaic distribution box.

[0044] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A waterproof and explosion-proof photovoltaic distribution box, characterized in that: It comprises a box body (1), a top plate (2) and a bottom plate (3); A mounting plate (4) for mounting electrical components is fixedly arranged in the box body (1); the box body (1) comprises a front plate (11), a rear plate (12) and two side plates (13); the front plate (11), the rear plate (12) and the two side plates (13) are integrally die-cast; The top ends of the front plate (11), the rear plate (12) and the two side plates (13) are bent outwards by 90 degrees to form an upper connecting plate (14), and the bottom ends of the front plate (11), the rear plate (12) and the two side plates (13) are bent outwards by 90 degrees to form a lower connecting plate (15); a doorway is provided on the front plate (11), a door frame (16) is fixedly provided on the outer periphery of the doorway, a box door (5) is fixedly installed on the outer side of the door frame (16) by screws (51) distributed along the circumference, and a rubber sealing strip (52) is provided between the box door (5) and the door frame (16); The bottom surface of the top plate (2) is respectively welded to each of the upper connecting plates (14); the corresponding upper connecting plates (14) are protruded from both sides and the rear of the top plate (2) to form an upper hanging edge (21); the upper hanging edge (21) is evenly distributed with upper mounting holes (22) along its length direction, and both ends of the upper hanging edge (21) are provided with hanging holes (23); The top surface of the bottom plate (3) is respectively welded to each of the lower connecting plates (15), and the corresponding lower connecting plates (15) are protruded from both sides and the rear of the bottom plate (3) to form a lower hanging edge (31); the lower hanging edge (31) is evenly distributed with lower mounting holes (32) along its length direction.

2. The waterproof and explosion-proof photovoltaic distribution box according to claim 1 is characterized in that: One side of the box door (5) is hinged to the door frame (16), and the other side is fixedly provided with a handle (53).

3. The waterproof and explosion-proof photovoltaic distribution box according to claim 1 is characterized in that: A horizontal partition (6) is fixedly arranged in the box body (1), and the mounting plate (4) is fixedly arranged above and below the partition (6) on the rear plate (12) in the box body (1).

4. The waterproof and explosion-proof photovoltaic distribution box according to claim 1 is characterized in that: A storage column (54) is fixedly arranged on the inner wall surface of the box door (5).

5. The waterproof and explosion-proof photovoltaic distribution box according to claim 1 is characterized in that: A plurality of waterproof glands (33) are fixedly connected to the bottom of the base plate (3).

6. The waterproof and explosion-proof photovoltaic distribution box according to claim 1, characterized in that: The surfaces of the box body (1), the top plate (2), the bottom plate (3), the mounting plate (4) and the box door (5) are all sprayed with an anti-corrosion coating.

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