A waterproof distribution box for a photovoltaic power generation system

Abstract

The application provides a waterproof distribution box for a photovoltaic power generation system, and relates to the technical field of distribution boxes. The waterproof distribution box comprises a box body, a box door hinged to the front face of the box body, a first waterproof film arranged on the front face of the box body, and a first magnetic sealing strip connected to one side of the first waterproof film close to the box door. The first magnetic sealing strip is adsorbed between the box body and the box door. The first waterproof film is arranged on the front face of the box body and the box door, and covers the gap between the box body and the box door. This can reduce the penetration of rainwater into the box body through the gap, reduce the failure rate caused by the penetration of rainwater, and improve the operation stability and reliability of the photovoltaic power generation system. The first waterproof film is magnetically fixed by the first magnetic sealing strip, and is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, and more specifically, to a waterproof distribution box for a photovoltaic power generation system. Background Technology

[0002] In photovoltaic power generation systems, the distribution box is a key piece of equipment, undertaking important functions such as power distribution, control and protection. However, since photovoltaic power generation systems are usually installed in outdoor environments, the distribution box is inevitably affected by weather conditions, especially the erosion of rainwater.

[0003] Traditional photovoltaic (PV) power distribution boxes have gaps between the box body and the door, which can easily become channels for rainwater to seep in during rainy weather. Once rainwater seeps into the distribution box, it may cause short circuits, corrosion, and other malfunctions in electrical components, affecting the normal operation of the distribution box. Therefore, we have made improvements and proposed a waterproof distribution box for PV power generation systems. Utility Model Content

[0004] This utility model provides a waterproof distribution box for a photovoltaic power generation system, including a box body and a door hinged to the front of the box body. A first waterproof membrane is provided on the front of the box body, and the first waterproof membrane covers the gap between the box body and the door. A first magnetic sealing strip is connected to the side of the first waterproof membrane near the door, and the first magnetic sealing strip is adsorbed between the box body and the door.

[0005] As a preferred technical solution of this application, a second waterproof membrane is provided on the top of the first waterproof membrane, and a second magnetic sealing strip is provided on the bottom of the second waterproof membrane, and the second magnetic sealing strip is attached to the top of the box.

[0006] As a preferred technical solution of this application, the front of the box door is open, and a lock box is connected inside the open. The lock box is equipped with a lock, and the lock is locked and forms a limit with the inner wall of the box.

[0007] As a preferred technical solution of this application, a handle is also fixedly installed inside the lock box.

[0008] As a preferred technical solution of this application, heat dissipation vents are provided on both sides of the box, and protective covers are fixedly connected to the two boxes on the sides that are far apart from each other, and the protective covers cover the heat dissipation vents.

[0009] As a preferred technical solution of this application, a mounting frame located below the heat dissipation vent is installed inside the protective cover, and a cooling fan is installed at the bottom of the mounting frame.

[0010] As a preferred technical solution of this application, the bottom of the box is provided with a support frame, and a waterproof and breathable membrane is installed in the middle of the support frame.

[0011] As a preferred technical solution of this application, the protective cover is equipped with a buckle body on both sides, and a buckle hook is installed on the side of the support frame, and the buckle hook is fastened to the buckle body.

[0012] As a preferred technical solution of this application, the bottom of the inner cavity of the box is provided with an inlet / outlet port.

[0013] As a preferred technical solution of this application, the top and bottom of the box are both equipped with mounting bases, and the mounting bases are provided with mounting holes.

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

[0015] In the scheme of this application:

[0016] This application provides a first waterproof membrane on the front of the enclosure and the door, which covers the gaps between the enclosure and the door. This reduces the possibility of rainwater seeping into the enclosure through the gaps, lowers the failure rate caused by rainwater infiltration, and improves the operational stability and reliability of the photovoltaic power generation system. The first waterproof membrane is magnetically fixed by a first magnetic sealing strip, making it easy to install and remove. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the waterproof distribution box for a photovoltaic power generation system provided in this application;

[0018] Figure 2 A bottom view of the waterproof distribution box for a photovoltaic power generation system provided in this application;

[0019] Figure 3 This is a schematic diagram of the heat dissipation port provided in this application;

[0020] Figure 4 This is a schematic diagram of the structure of the first magnetic sealing strip provided in this application;

[0021] Figure 5 A schematic diagram of the cooling fan provided in this application.

[0022] The image shows:

[0023] 1. Enclosure; 101. Enclosure door; 102. Lock box; 103. Handle; 104. Lock; 105. Cable inlet / outlet; 106. Mounting base; 107. Mounting hole; 108. Vent; 2. Protective cover; 201. Mounting frame; 202. Cooling fan; 203. Support frame; 204. Waterproof and breathable membrane; 205. Hook and latch; 206. Hook and latch body; 3. First waterproof membrane; 301. Second waterproof membrane; 302. First magnetic sealing strip. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] For an example, please refer to... Figures 1-4 A waterproof distribution box for a photovoltaic power generation system includes a box body 1 and a door 101 hinged to the front of the box body 1. A first waterproof membrane 3 is provided on the front of the box body 1, and the first waterproof membrane 3 covers the gap between the box body 1 and the door 101. A first magnetic sealing strip 302 is connected to the side of the first waterproof membrane 3 near the door 101, and the first magnetic sealing strip 302 is attracted between the box body 1 and the door 101.

[0028] This application provides a first waterproof membrane 3 on the front of the housing 1 and the door 101. The first waterproof membrane 3 covers the gaps between the housing 1 and the door 101, which can reduce the situation where rainwater seeps into the interior of the housing 1 through the gaps, reduce the failure rate caused by rainwater seepage, and improve the operational stability and reliability of the photovoltaic power generation system. The first waterproof membrane 3 is magnetically fixed by a first magnetic sealing strip 302, which is convenient to install and remove.

[0029] Both the box body 1 and the box door 101 are made of materials that can be magnetically attracted. The first magnetic sealing strip 302 is frame-shaped and is bonded to the first waterproof membrane 3 with glue.

[0030] Furthermore, a second waterproof membrane 301 is provided on the top of the first waterproof membrane 3, and a second magnetic sealing strip is provided on the bottom of the second waterproof membrane 301. The second magnetic sealing strip is attached to the top of the box 1 to enhance the waterproof performance of the top of the distribution box and further prevent rainwater from seeping in from above. The second magnetic sealing strip is bonded to the second waterproof membrane 301 with glue. The first waterproof membrane 3 and the second waterproof membrane 301 are made of PET film.

[0031] Furthermore, the front of the door 101 is open, and a lock box 102 is connected inside the open. A lock 104 is provided on the lock box 102. When the lock 104 is locked, it forms a limit with the inner wall of the box 1. The lock box 102 is welded to the inner wall of the open. The lock box 102 can reduce the protrusion of the handle 103 and the lock 104, thereby facilitating the installation of the first waterproof membrane 3.

[0032] Furthermore, a handle 103 is also fixedly installed inside the lock box 102, and the handle 103 is designed to raise the hand gripping point when opening the lock box 101.

[0033] Furthermore, heat dissipation vents 108 are provided on both sides of the enclosure 1. Protective covers 2 are fixedly connected to the sides of the two enclosures 1 that are far apart from each other, and the protective covers 2 cover the heat dissipation vents 108. The heat dissipation vents 108 meet the heat dissipation requirements of electrical equipment. The protective covers 2 block the flow of rainwater from the outside, change the direction of rainwater flow, reduce the contact of rainwater with the heat dissipation vents 108, and ensure the normal operating temperature and waterproof performance of the equipment. The position of the heat dissipation vents 108 is far away from the bottom of the protective covers 2 to reduce the splashing of rainwater into the heat dissipation vents 108.

[0034] Furthermore, a mounting frame 201 located below the heat dissipation vent 108 is installed inside the protective cover 2. A cooling fan 202 is installed at the bottom of the mounting frame 201. This application has two cooling fans 202. The two cooling fans 202 blow air into the box 1 and exhaust air out of the box 1 respectively, so as to accelerate the heat dissipation inside the box 1.

[0035] Furthermore, a support frame 203 is provided at the bottom of the box 1, and a waterproof and breathable membrane 204 is installed in the middle of the support frame 203. The waterproof and breathable membrane 204 is glued inside the support frame 203. The setting of the waterproof and breathable membrane 204 can further improve the waterproof effect.

[0036] The waterproof and breathable membrane 204 is an existing component, and its waterproof and breathable principle is common knowledge, so it will not be described in detail in this application.

[0037] In this application, the waterproof and breathable membrane 204 set in the middle of the bottom support frame 203 of the box 1 can effectively block rainwater from seeping in. However, due to the limitation of its pore size, the airflow under natural conditions will be affected to a certain extent. However, this application can compensate for this effect by setting the cooling fan 202 through forced convection. That is, the cooling fan 202 directly accelerates the air exchange between the inside of the box 1 and the external environment through active air supply / exhaust, so as to ensure that the overall ventilation volume can meet the heat dissipation requirements of the electrical components in the photovoltaic power generation system distribution box. In other words, this application effectively makes up for the impact of the waterproof and breathable membrane 204 on the natural ventilation volume through the active forced convection design of the cooling fan 202, and ensures that the distribution box still has sufficient ventilation and heat dissipation capacity while improving waterproof performance.

[0038] Furthermore, both sides of the protective cover 2 are equipped with a buckle body 206, and the side of the support frame 203 is equipped with a buckle hook 205, and the buckle hook 205 is fastened to the buckle body 206. The buckle body 206 and the buckle hook 205 are existing components, and their specific structure and usage methods are existing technologies, which will not be described in detail in this application.

[0039] Furthermore, the bottom of the inner cavity of the box 1 is provided with an inlet / outlet port 105, which is used for the passage of the cable. After the cable passes through the inlet / outlet port 105, fireproof putty is used to seal the gap between the inlet / outlet port 105 and the cable.

[0040] Furthermore, mounting bases 106 are installed on the top and bottom of the housing 1, and mounting holes 107 are provided on the mounting bases 106. The mounting holes 107 are provided for bolts to pass through during installation.

[0041] Mounting base 106 and lock box 102 are both welded to the housing 1. Mounting frame 201 is welded inside the protective cover 2. Cooling fan 202 is fixed to mounting frame 201 by bolts. Hook and latch 205 are welded to support frame 203. Hook and latch body 206 are welded to protective cover 2.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A waterproof distribution box for a photovoltaic power generation system, characterized in that, The box includes a box body (1) and a door (101) hinged to the front of the box body (1). A first waterproof membrane (3) is provided on the front of the box body (1), and the first waterproof membrane (3) covers the gap between the box body (1) and the door (101). A first magnetic sealing strip (302) is connected to the side of the first waterproof membrane (3) near the door (101). The first magnetic sealing strip (302) is attracted between the box body (1) and the door (101).

2. The waterproof distribution box for a photovoltaic power generation system according to claim 1, characterized in that, The top of the first waterproof membrane (3) is provided with a second waterproof membrane (301), the bottom of the second waterproof membrane (301) is provided with a second magnetic sealing strip, and the second magnetic sealing strip is attached to the top of the box (1).

3. The waterproof distribution box for a photovoltaic power generation system according to claim 1, characterized in that, The front of the box door (101) is open, and a lock box (102) is connected inside the open. A lock (104) is provided on the lock box (102). When the lock (104) is locked, it forms a limit with the inner wall of the box body (1).

4. The waterproof distribution box for a photovoltaic power generation system according to claim 3, characterized in that, A handle (103) is also fixedly installed inside the lock box (102).

5. The waterproof distribution box for a photovoltaic power generation system according to claim 1, characterized in that, Both sides of the box (1) are provided with heat dissipation vents (108), and the two boxes (1) are fixedly connected to the side away from each other with protective covers (2), and the protective covers (2) cover the heat dissipation vents (108).

6. The waterproof distribution box for a photovoltaic power generation system according to claim 5, characterized in that, The protective cover (2) is equipped with a mounting frame (201) located below the heat dissipation port (108), and a heat dissipation fan (202) is installed at the bottom of the mounting frame (201).

7. The waterproof distribution box for a photovoltaic power generation system according to claim 6, characterized in that, The bottom of the box (1) is provided with a support frame (203), and a waterproof and breathable membrane (204) is installed in the middle of the support frame (203).

8. The waterproof distribution box for a photovoltaic power generation system according to claim 7, characterized in that, The protective cover (2) is equipped with a buckle body (206) on both sides, and a buckle hook (205) is installed on the side of the support frame (203), and the buckle hook (205) is fastened to the buckle body (206).

9. The waterproof distribution box for a photovoltaic power generation system according to claim 1, characterized in that, The bottom of the inner cavity of the box (1) is provided with an inlet / outlet port (105).

10. The waterproof distribution box for a photovoltaic power generation system according to claim 1, characterized in that, The top and bottom of the housing (1) are both equipped with mounting bases (106), and mounting holes (107) are provided on the mounting bases (106).

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