Photovoltaic box transformer substation ventilation structure

Abstract

The utility model relates to the technical field of photovoltaic box transformer substations, in particular to a photovoltaic box transformer substation ventilation structure, which comprises a box body used for installing photovoltaic equipment, a blast box arranged on one side wall of a leaf plate box body, a plurality of flow guide plates radially distributed from a small end opening to a large end opening in a leaf plate trapezoidal box, and a fan arranged in a leaf plate box frame. A shutter is installed at the opening, away from the leaf plate trapezoidal box, of the leaf plate box frame, a plurality of blades are installed at the opening end of the leaf plate window frame side by side, each leaf plate blade comprises a long-strip-shaped leaf plate, semi-arc blades facing opposite directions are arranged on the left side and the right side of the upper end and the lower end of each leaf plate, and a dustproof net is inserted into the leaf plate window frame. According to the ventilation structure of the photovoltaic box transformer substation, airflow can be dispersed to the upper layer, the middle layer and the lower layer of the box body through the trapezoid box, the flow guide plate and the fan, uniform heat dissipation is carried out on electrical equipment, and meanwhile, the semi-arc blades and the dustproof nets arranged in the shutters can prevent water and dust.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic box transformers, in particular to a photovoltaic box transformer ventilation structure. Background Art

[0002] Photovoltaic box-type substation is a compact power distribution device that combines low-voltage switchgear, transformer, high-voltage switchgear, electric energy metering equipment, etc. in a box according to a certain wiring scheme. It is suitable for three-phase AC systems as a line and for distributing electric energy.

[0003] The utility model patent with authorization announcement number cN214314183U discloses a ventilation device for a photovoltaic box transformer, including a box body, an air inlet fan, an air inlet side spoiler assembly, an air outlet side spoiler assembly and an air outlet fan; the air inlet side spoiler assembly includes a first air inlet baffle, a first air outlet baffle, a first spoiler installed on the first air inlet baffle and a second spoiler installed on the first air outlet baffle; the first air inlet baffle and the first air outlet baffle are respectively provided with a first air inlet window and a first air outlet window; an electrical cabinet is installed between the air outlet side spoiler assembly and the air inlet side spoiler assembly, and the air outlet side spoiler assembly includes a second air inlet baffle, a second air outlet baffle, a third spoiler installed on the second air inlet baffle and a fourth spoiler installed on the second air outlet baffle; the second air inlet baffle and the second air outlet baffle are respectively provided with a second air inlet window and a second air outlet window.

[0004] Although the airflow in this technical solution flows out of the box after passing through the air inlet fan, the air inlet spoiler assembly, the top of the electrical cabinet, the air outlet spoiler assembly and the air outlet fan, the heat dissipation effect is good; however, the airflow in this technical solution cannot be dispersed, and the electrical equipment in the box cannot be evenly cooled. At the same time, the vent structure cannot prevent rain and dust. In view of this, we propose a photovoltaic box transformer ventilation structure. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a photovoltaic box transformer ventilation structure.

[0006] In the first aspect, the present application provides a photovoltaic box variable ventilation structure, including a box for installing photovoltaic equipment, a blower box is provided on one side wall of the box, the blower box includes a trapezoidal box with a large end opening welded and fixed to one side wall of the box, a plurality of guide plates radially distributed from the small end opening to the large end opening are installed in the trapezoidal box, a box frame is integrally formed at the small end opening of the trapezoidal box, a fan is installed in the box frame, a shutter is installed at the opening of the box frame away from the trapezoidal box, the shutter includes a window frame, a plurality of blades are installed side by side at the opening end of the window frame, the blade includes a long strip of blade plate, the upper and lower ends of the blade plate are provided with semi-arc blades facing oppositely on the left and right sides, a dust net is inserted into the window frame, and a plurality of shutters are installed on the side wall of the box away from the blower box.

[0007] According to the technical solution provided in the embodiment of the present application, a plurality of air inlets are opened on the side wall of the box body close to the blower box, the cross-sectional size of the large opening end of the trapezoidal box is equal to the size of the side wall of the box body close to the blower box, and the side wall of the large opening end of the trapezoidal box is welded and fixed to the side wall of the box body.

[0008] According to the technical solution provided in the embodiment of the present application, a cross mounting frame for mounting a fan is welded and fixed in the box frame, and a side wall at one end of the box frame away from the fan is provided with a slot for clamping the shutter.

[0009] According to the technical solution provided in the embodiment of the present application, a latching protrusion adapted to the latching slot is integrally formed at one end of the window frame away from the blade, and a groove with an open top and a closed bottom and adapted to the dustproof net is provided in the window frame.

[0010] According to the technical solution provided in the embodiment of the present application, the cross-sectional dimension of the dustproof net is greater than or equal to the inner dimension of the window frame, and a handle is provided in the middle of the end of the dustproof net away from the end inserted into the groove.

[0011] According to the technical solution provided in the embodiment of the present application, the semi-arc leaves are welded and fixed to the blade plate, the longitudinal cross-sections of the two semi-arc leaves close to each other on two adjacent blades are located on the same circular ring, and the two adjacent blades above and below do not contact each other.

[0012] According to the technical solution provided in the embodiment of the present application, the window frame is welded and fixed with a downward facing semi-arc leaf at the top end of the opening, and the window frame is welded and fixed with an upward facing semi-arc leaf at the bottom end of the opening.

[0013] To sum up, the present technical scheme specifically discloses a photovoltaic box transformer ventilation structure, which includes a box body for installing photovoltaic equipment, a blower box is provided on one side wall of the box body, a plurality of guide plates radially distributed from the small end opening to the large end opening are installed in the trapezoidal box, a fan is installed in the box frame, a shutter is installed at the opening of the box frame away from the trapezoidal box, a plurality of blades are installed side by side at the opening end of the window frame, the blades include long strips of blades, and semi-arc blades facing oppositely are provided on the left and right sides at the upper and lower ends of the blades, and a dustproof net is inserted into the window frame; the airflow can be dispersed to the upper, middle and lower layers of the box body through the provided trapezoidal box, and the electrical equipment is evenly cooled. At the same time, the semi-arc leaves and dustproof nets provided in the shutters can prevent water and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the overall structure in the utility model;

[0017] Figure 3 It is an exploded view of the overall structure in the utility model;

[0018] Figure 4 It is an exploded diagram of the bellows structure in the utility model;

[0019] Figure 5 It is a cross-sectional view of the shutter structure in the utility model;

[0020] Figure 6 It is an exploded view of the shutter structure in the utility model;

[0021] Figure 7 It is a schematic diagram of the blade structure in the utility model.

[0022] In the figure:

[0023] 1. Box body; 11. Air inlet;

[0024] 2. Blower box; 21. Trapezoidal box; 22. Box frame; 23. Guide plate; 24. Fan; 25. Cross mounting bracket;

[0025] 3. Venetian blinds; 31. Window frame; 311. Grooves; 32. Blades; 321. Leaf plates; 322. Semi-arc leaves; 33. Bosses; 34. Dust screen; 341. Handle. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be 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 ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] See also Figure 1-Figure 7 A photovoltaic box variable ventilation structure comprises a box body 1 for installing photovoltaic equipment, a blower box 2 is provided on one side wall of the box body 1, the blower box 2 comprises a trapezoidal box 21 whose large end opening is welded and fixed to one side wall of the box body 1, a plurality of guide plates 23 radially distributed from the small end opening to the large end opening are installed in the trapezoidal box 21, a box frame 22 is integrally formed at the small end opening of the trapezoidal box 21, a fan 24 is installed in the box frame 22, a shutter 3 is installed at the opening of the box frame 22 away from the trapezoidal box 21, the shutter 3 comprises a window frame 31, a plurality of blades 32 are arranged side by side at the opening end of the window frame 31, the blade 32 comprises a long strip blade plate 321, the upper and lower ends of the blade plate 321 are provided with semi-arc blades 322 facing oppositely on the left and right sides, a dustproof net 34 is inserted in the window frame 31, and a plurality of shutters 3 are installed on the side wall of the box body 1 away from the blower box 2.

[0029] In this embodiment, a plurality of air inlets 11 are provided on the side wall of the box body 1 close to the blower box 2. The cross-sectional size of the large opening end of the trapezoidal box 21 is equal to the size of the side wall of the box body 1 close to the blower box 2. The side wall of the large opening end of the trapezoidal box 21 is welded and fixed to the side wall of the box body 1. The air inlet 11 is used to guide the airflow blown out by the fan 24 into the box body 1.

[0030] Furthermore, a cross mounting frame 25 for mounting the fan 24 is welded and fixed inside the box frame 22, and a side wall at one end of the box frame 22 away from the fan 24 is provided with a slot for snapping into the shutter 3; the cross mounting frame 25 will not block the airflow while effectively fixing the fan 24.

[0031] Secondly, a latching protrusion 33 adapted to the latching slot is integrally formed at one end of the window frame 31 away from the blade 32, and a groove 311 with an open top, a closed bottom and adapted to the dustproof net 34 is provided in the window frame 31; the latching protrusion 33 helps to install the shutter 3, and the groove 311 facilitates the insertion of the dustproof net 34.

[0032] Furthermore, the cross-sectional dimension of the dustproof net 34 is greater than or equal to the inner dimension of the window frame 31 , and a handle 341 is provided in the middle of the end of the dustproof net 34 away from the groove 311 ; the dustproof net 34 can effectively prevent external dust from entering the interior of the box body 1 , and the handle 341 facilitates the insertion of the dustproof net 34 .

[0033] Secondly, the semi-arc leaves 322 are welded and fixed to the blade plate 321, and the longitudinal sections of the two semi-arc leaves 322 close to each other on two adjacent blades 32 are located on the same circular ring, and the two adjacent blades 32 above and below do not touch each other; the positions of the two semi-arc leaves 322 can effectively prevent rainwater from entering the box body 1.

[0034] Furthermore, a downward facing semi-arc leaf 322 is welded and fixed at the top end of the opening of the window frame 31 , and an upward facing semi-arc leaf 322 is welded and fixed at the bottom end of the opening of the window frame 31 ; the semi-arc leaves 322 at the upper and lower window frames 31 prevent rainwater from entering the box body 1 .

[0035] Working principle: When the photovoltaic box-type transformer ventilation structure of the utility model is in use, the user turns on the fan 24, the airflow is dispersed through the guide plate 23, and the upper, middle and lower parts of the box body 1 are evenly cooled through the air inlet 11. Then the airflow flows out from the shutters 3 on the opposite side walls. When the airflow enters the blower box 2, it passes through the dustproof net 34 to prevent dust from entering the box body 1. At the same time, the semi-arc leaves 322 can prevent rainwater from entering the box body 1 when it rains.

[0036] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features disclosed in the present application but not limited to those with similar functions.

Claims

1. A photovoltaic box-type transformer ventilation structure, comprising a box body (1) for installing photovoltaic equipment, characterized in that: A blower box (2) is provided on one side wall of the box body (1), and the blower box (2) comprises a trapezoidal box (21) whose large end opening is welded and fixed to one side wall of the box body (1), and a plurality of guide plates (23) are installed in the trapezoidal box (21) and are radially distributed from the small end opening to the large end opening, and a box frame (22) is integrally formed at the small end opening of the trapezoidal box (21), and a fan (24) is installed in the box frame (22), and the box frame (22) is away from the opening of the trapezoidal box (21). A shutter (3) is installed at the position, the shutter (3) comprising a window frame (31), a plurality of blades (32) are installed side by side at the open end of the window frame (31), the blades (32) comprise long strip blades (321), the blades (321) are provided with semi-arc blades (322) facing oppositely at the upper and lower ends and on the left and right sides, a dustproof net (34) is inserted into the window frame (31), and a plurality of shutters (3) are installed on the side wall of the box body (1) away from the blower box (2).

2. The photovoltaic box transformer ventilation structure according to claim 1 is characterized in that: A plurality of air inlets (11) are provided on the side wall of the box body (1) close to the blower box (2); the cross-sectional dimension of the large opening end of the trapezoidal box (21) is equal to the dimension of the side wall of the box body (1) close to the blower box (2); and the side wall of the large opening end of the trapezoidal box (21) is welded and fixed to the side wall of the box body (1).

3. The photovoltaic box transformer ventilation structure according to claim 1 is characterized in that: A cross mounting frame (25) for mounting a fan (24) is welded and fixed inside the box frame (22), and a side wall at one end of the box frame (22) away from the fan (24) is provided with a slot for clamping the shutter (3).

4. The photovoltaic box transformer ventilation structure according to claim 1 is characterized in that: A protrusion (33) adapted to the slot is integrally formed at one end of the window frame (31) away from the blade (32), and a groove (311) adapted to the dustproof net (34) is provided in the window frame (31) with an open top and a closed bottom.

5. The photovoltaic box transformer ventilation structure according to claim 1 is characterized in that: The cross-sectional dimension of the dustproof net (34) is greater than or equal to the inner dimension of the window frame (31), and a handle (341) is provided in the middle of one end of the dustproof net (34) away from the end inserted into the groove (311).

6. The photovoltaic box transformer ventilation structure according to claim 1 is characterized in that: The semi-arc leaves (322) are welded and fixed to the blade plate (321); the longitudinal cross-sections of the two semi-arc leaves (322) on two adjacent blades (32) are located on the same circular ring; and the two adjacent blades (32) are not in contact with each other.

7. The photovoltaic box transformer ventilation structure according to claim 1 is characterized in that: The window frame (31) is welded and fixed with a downward facing semi-arc leaf (322) at the top end of the opening, and the window frame (31) is welded and fixed with an upward facing semi-arc leaf (322) at the bottom end of the opening.

Images