Photovoltaic intelligent combiner box

Abstract

This utility model belongs to the field of combiner box technology, and particularly relates to a photovoltaic intelligent combiner box, comprising: a box body, including a storage chamber and heat dissipation vents on the side walls of the box body; a box cover, hinged to the box body for sealing the storage chamber; a baffle, hinged to the side wall of the box body for blocking the heat dissipation vents; a protective plate, disposed on the side wall of the box body and located above the heat dissipation vents; the protective plate is also provided with a positioning component for fixing the baffle to the protective plate; the beneficial effects of this utility model are that it can achieve good ventilation and heat dissipation when the device load is high, and can also prevent rainwater from entering the box body and causing damage to the components in rainy weather, making it highly practical.

Description

Technical Field

[0001] This utility model belongs to the field of combiner box technology, and in particular relates to a photovoltaic intelligent combiner box. Background Technology

[0002] A photovoltaic AC combiner box is a low-voltage complete power distribution device installed on the AC output side of a string inverter. It receives three-phase AC power from multiple inverters, realizes the collection of multiple AC input lines, hierarchical protection, and unified transmission of power to the grid-connected cabinet, the low-voltage side of the box-type transformer, or the public power grid. It is a dedicated power distribution box for the collection, branch control, and protection of the AC side of a photovoltaic power station.

[0003] Currently, most photovoltaic combiner boxes generate heat from their internal electrical components during operation. Since photovoltaic power generation varies with the intensity of sunlight, the load on the components within the combiner box also fluctuates periodically, resulting in varying levels of heat generation. In existing technology, most combiner boxes dissipate internal heat solely through the box body. When there is excessive heat inside the combiner box, it can easily become trapped, leading to damage to the internal components and affecting the normal operation of the combiner box. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic intelligent combiner box to address the aforementioned technical problems.

[0005] In view of this, the present invention provides a photovoltaic intelligent combiner box, comprising: The cabinet includes a storage chamber, and ventilation openings are provided on the side walls of the cabinet. The lid is hinged to the box body and is used to seal the storage compartment; A baffle, hinged to the side wall of the enclosure, is used to block the heat dissipation vents; The protective plate is installed on the side wall of the enclosure and is located above the heat dissipation vents; The protective plate is also equipped with positioning components, which are used to fix the baffle to the protective plate.

[0006] Furthermore, the positioning component is the first magnetic block, and the baffle is made of metal.

[0007] Furthermore, a locking device is also provided on the box body to securely connect the baffle and the box body.

[0008] Furthermore, the locking element is a second magnetic block.

[0009] Furthermore, a sealing strip is also provided on the baffle. When the baffle covers the heat dissipation vent, the sealing strip abuts against the box body.

[0010] Furthermore, the protective plate is also equipped with a drainage slope.

[0011] Furthermore, the baffle is also equipped with an integrated paddle, and a groove structure is formed between the paddle and the baffle.

[0012] Furthermore, a filter screen is also installed at the heat dissipation vent.

[0013] The beneficial effects of this utility model are: When this photovoltaic combiner box is in operation, during the daytime when the current is high and the components generate significant heat, the heat dissipation vents can be opened by flipping up the baffle, allowing air circulation inside the box and achieving good heat dissipation and cooling. At night, when the inverter is off and there is almost no current, the heat dissipation vents can be covered by flipping up the baffle, effectively preventing rainwater from entering the box during rainy weather. Therefore, this photovoltaic combiner box provides excellent ventilation and heat dissipation when the components are under high load, and also prevents rainwater from entering the box and damaging the components during rainy weather, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the heat dissipation port of this utility model when it is open; Figure 3 This is a partial structural cross-sectional view of the present invention; The markings in the diagram are as follows: 1. Box body; 11. Heat dissipation vent; 2. Box cover; 3. Baffle; 31. Paddle; 32. Groove; 4. Protective plate; 41. Drainage slope; 5. First magnetic block; 6. Second magnetic block; 7. Sealing strip; 8. Filter screen. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0017] Example 1:

[0018] This embodiment provides a photovoltaic smart combiner box, including: Box 1, Box 1 includes a storage chamber, and each side wall of Box 1 is provided with a heat dissipation vent 11; Box lid 2 is hinged to box body 1 and is used to seal the storage chamber; Baffle 3 is hinged to the side wall of housing 1 and is used to block the heat dissipation vent 11. Protective plate 4 is installed on the side wall of the housing 1 and is located above the heat dissipation vent 11; The protective plate 4 is also equipped with a positioning component, which is used to fix the baffle 3 on the protective plate 4.

[0019] In this technical solution, the photovoltaic combiner box is installed on the AC output side of the string inverter. It contains components such as a three-phase AC miniature circuit breaker, a current acquisition transformer, and terminals. The installation and wiring of these components inside the box 1 are existing technologies and will not be described in detail.

[0020] Ventilation vents 11 are provided on both side walls of the enclosure 1, allowing air exchange and circulation between the outside and inside of the enclosure 1, thereby achieving the effect of cooling the internal components. A baffle 3 is hinged to each ventilation vent 11, allowing the operator to cover or open the ventilation vent 11 by rotating the baffle 3.

[0021] Above each heat dissipation vent 11, a protective plate 4, integrally formed with the housing 1, is provided. The protective plate 4 protrudes from the side wall of the housing 1, effectively blocking fluid dripping from above and preventing it from flowing down the side wall of the housing 1 into the heat dissipation vent 11 and into the housing 1. A positioning element is also provided on the protective plate 4; further, the positioning element can be a first magnetic block 5, and the baffle 3 is made of metal. When the baffle 3 is rotated and flipped up, the first magnetic block 5 can attract and fix the baffle 3 onto the protective plate 4, keeping the heat dissipation vent 11 in a normally open state, thereby allowing air circulation between the inside and outside of the housing 1 and achieving a good heat dissipation effect.

[0022] When this photovoltaic combiner box is in operation, during the daytime when the current is high and the components generate significant heat, the heat dissipation vent 11 can be opened by flipping up the baffle 3, allowing air circulation inside the box 1 and achieving good heat dissipation and cooling. At night, when the inverter is off and there is almost no current, the heat dissipation vent 11 can be covered by flipping up the baffle 3, effectively preventing rainwater from entering the box 1 during rainy weather. In summary, this photovoltaic combiner box provides excellent ventilation and heat dissipation when the components are under high load, and also prevents rainwater from entering the box 1 and damaging the components during rainy weather, making it highly practical.

[0023] Example 2:

[0024] This embodiment provides a photovoltaic smart combiner box, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] Furthermore, a locking component is also provided on the housing 1 to fix the baffle 3 and the housing 1 in place. The locking component is a second magnetic block 6. This structural design uses the second magnetic block 6 to magnetically attach the baffle 3 to the housing 1, preventing the baffle 3 from failing to cover the heat dissipation vent 11 due to shaking. Furthermore, the baffle 3 is also equipped with a sealing strip 7. When the baffle 3 covers the heat dissipation vent 11, the sealing strip 7 abuts against the housing 1. The sealing strip 7 is made of rubber. While the second magnetic block 6 attaches the baffle 3 to the housing 1, it also compresses the sealing strip 7, thus ensuring a sealed connection between the baffle 3 and the housing 1, preventing liquid from flowing into the housing 1 through gaps, thus enhancing its practicality.

[0026] Example 3:

[0027] This embodiment provides a photovoltaic smart combiner box, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Furthermore, the protective plate 4 is also provided with a drainage ramp 41. Through this structural design, the fluid falling on the protective plate 4 can be guided down to the ground, reducing liquid residue on the protective plate 4.

[0029] Furthermore, the baffle 3 is also equipped with an integrated paddle 31, and a groove 32 is formed between the paddle 31 and the baffle 3. With this structural design, the operator can flip the baffle 3 by gripping the groove 32 with their fingers, making the operation more convenient and effortless, and highly practical.

[0030] Furthermore, a filter 8 is also installed at the heat dissipation vent 11. Through this structural design, the filter 8 can filter the circulating air, thereby reducing dust entering the interior of the housing 1 and achieving a certain dust prevention effect.

[0031] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A photovoltaic intelligent combiner box, characterized in that, include: The box (1) includes a storage chamber, and heat dissipation vents (11) are provided on the side walls of the box (1). Box lid (2), which is hinged to the box body (1) and is used to seal the storage chamber; Baffle (3), which is hinged to the side wall of the box (1) and is used to block the heat dissipation port (11). Protective plate (4), the protective plate (4) is set on the side wall of the box (1) and located above the heat dissipation vent (11); The protective plate (4) is also provided with a positioning component, which is used to fix the baffle (3) on the protective plate (4).

2. The photovoltaic intelligent combiner box according to claim 1, characterized in that, The positioning component is the first magnetic block (5), and the baffle (3) is made of metal.

3. A photovoltaic intelligent combiner box according to claim 2, characterized in that, The housing (1) is also provided with a locking component, which is used to fix the baffle (3) and the housing (1) in place.

4. A photovoltaic intelligent combiner box according to claim 3, characterized in that, The locking element is the second magnetic block (6).

5. A photovoltaic intelligent combiner box according to claim 3, characterized in that, The baffle (3) is also provided with a sealing strip (7). When the baffle (3) covers the heat dissipation port (11), the sealing strip (7) abuts against the box body (1).

6. A photovoltaic intelligent combiner box according to claim 1, characterized in that, The protective plate (4) is also provided with a drainage slope (41).

7. A photovoltaic intelligent combiner box according to claim 1, characterized in that, The baffle (3) is also provided with an integrally structured paddle (31), and a groove (32) structure is formed between the paddle (31) and the baffle (3).

8. A photovoltaic intelligent combiner box according to claim 1, characterized in that, A filter (8) is also provided at the heat dissipation port (11).

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