Heat dissipation device of photovoltaic grid-connected box

Abstract

The utility model relates to the technical field of photovoltaic power generation grid connection, and discloses a heat dissipation device of a photovoltaic grid-connected box, which comprises a box body, a box cover and a box top, the box cover is arranged on the side wall of the box body, and the box top is arranged at the top of the box body; two fans are symmetrically mounted on the upper side of the interior of the box body, air inlets are formed in the bottoms of the two sides of the box body, and air outlets are formed in the two sides of the bottom of the box top; and damping support legs are arranged at four corners of the bottom of the box body. According to the utility model, the functions of bottom-in top-out and active air-cooling heat dissipation are adopted, so that heat in the box body can be quickly dissipated, and the service life of electrical components is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation and grid connection, in particular to a heat dissipation device of a photovoltaic grid connection box. Background Art

[0002] The grid-connected box exists in the photovoltaic system as the total outlet of the photovoltaic power station. It is a distribution device connecting the photovoltaic power station and the power grid. Its main function is to serve as the dividing point between the photovoltaic power generation system and the power grid.

[0003] When the existing photovoltaic grid-connected box is in long-term operation, the heat inside the box accumulates and is difficult to dissipate. At present, various manufacturers mainly rely on natural air circulation to dissipate heat. However, the natural circulation of ambient air has insufficient air flow, and the heat dissipation effect is not obvious, which cannot effectively reduce the temperature. In addition, the temperature inside the box is too high, which reduces the service life of electrical components and has the risk of fire. Therefore, a heat dissipation device for a photovoltaic grid-connected box is proposed. Utility Model Content

[0004] The utility model aims to solve the problem of poor heat dissipation effect of photovoltaic grid-connected boxes in the prior art, and proposes a heat dissipation device for a photovoltaic grid-connected box.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat dissipation device for a photovoltaic grid-connected box comprises a box body, a box cover and a box top, wherein the box cover is arranged on the side wall of the box body, and the box top is arranged on the top of the box body; two fans are symmetrically installed on the inner upper side of the box body, air inlets are arranged at the bottom of both sides of the box body, and air outlets are arranged at both sides of the bottom of the box top; shock-absorbing feet are arranged at the four corners of the bottom of the box body.

[0007] Preferably, the box top adopts a conical structure.

[0008] Preferably, the air inlet adopts a dust-proof air inlet window.

[0009] Preferably, the air outlet is an air outlet pipe arranged vertically downward.

[0010] Preferably, the shock-absorbing foot comprises a rubber seat, a screw and a nut, the screw is vertically fixed on the top of the rubber seat, the nut is threadedly arranged on the rod wall of the screw, and the bottom of the box is provided with a screw hole matching the screw.

[0011] Preferably, the rubber seat adopts a truncated cone structure.

[0012] Compared with the prior art, the utility model provides a heat dissipation device for a photovoltaic grid-connected box, which has the following beneficial effects:

[0013] 1. The heat dissipation device of the photovoltaic grid-connected box is equipped with a fan, an air inlet and an air outlet. When the fan is working, the external gas can be sucked in through the air inlets on both sides and then discharged through the air outlet on the top, thereby realizing the function of bottom-in and top-out, and active air cooling and heat dissipation, so that the heat inside the box can be quickly dissipated, extending the service life of electrical components.

[0014] 2. The heat dissipation device of the photovoltaic grid-connected box is provided with a shock-absorbing foot, and the shock-absorbing foot is composed of a rubber seat, a screw and a nut. The rubber seat is in contact with the placement surface. The use height of the rubber seat is adjusted by rotating the screw, and the position of the screw is fixed by tightening the nut, so that the box can be stably supported. At the same time, the shock-absorbing effect is good, which can reduce the impact of vibration on electrical components.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model adopts the function of bottom-in and top-out, and active air cooling and heat dissipation, so that the heat inside the box can be quickly dissipated, thereby extending the service life of the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a heat dissipation device for a photovoltaic grid-connected box proposed by the utility model;

[0017] Figure 2 This is a plan view of a heat dissipation device for a photovoltaic grid-connected box proposed by the utility model;

[0018] Figure 3 for Figure 2 Sectional view along AA direction;

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the middle shock-absorbing support foot.

[0020] In the figure: 1. box top; 2. box body; 3. box cover; 4. fan; 5. air inlet; 6. air outlet; 7. shock-absorbing feet; 8. rubber seat; 9. screw; 10. nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example 3

[0024] Reference Figure 1-2 A heat dissipation device for a photovoltaic grid-connected box comprises a box body 2, a box cover 3 and a box top 1. The box cover 3 is arranged on the side wall of the box body 2, and the box top 1 is arranged on the top of the box body 2. The box top 1 adopts a conical structure. Two fans 4 are symmetrically installed on the upper side of the interior of the box body 2. Air inlets 5 are arranged at the bottom of both sides of the box body 2. The air inlets 5 adopt dust-proof air inlet windows. Air outlets 6 are arranged on both sides of the bottom of the box top 1. The air outlets 6 adopt air outlet pipes arranged vertically downward. When the fan 4 works, the external gas can be sucked in through the air inlets 5 on both sides, and then discharged through the air outlet 6 on the top, thereby realizing the function of bottom-in and top-out, and active air cooling and heat dissipation, so that the heat inside the box body 2 can be quickly dissipated, thereby extending the service life of the electrical components.

[0025] Example 2

[0026] Reference Figure 1 and 4 Shock-absorbing feet 7 are provided at the four corners of the bottom of the box body 2. The shock-absorbing feet 7 include a rubber seat 8, a screw rod 9 and a nut 10. The screw rod 9 is vertically fixed on the top of the rubber seat 8. The nut 10 is threadedly arranged on the rod wall of the screw rod 9. A screw hole matching the screw rod 9 is provided at the bottom of the box body 2. The rubber seat 8 adopts a truncated cone structure. When the shock-absorbing feet 7 are installed, the screw rod 9 is threadedly connected to the screw hole at the bottom of the box body 2 by vibrating the rubber seat 8. At this time, the position of the rubber seat 8 can be adjusted to ensure that the box body 2 can be stably supported and placed. When the box body 2 is subjected to vibration impact force, the rubber seat 8 can absorb the impact force and reduce the influence of vibration on the electrical components inside the box body 2.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat dissipation device for a photovoltaic grid-connected box, comprising a box body (2), a box cover (3) and a box top (1), characterized in that: The box cover (3) is arranged on the side wall of the box body (2), and the box top (1) is arranged on the top of the box body (2); Two fans (4) are symmetrically installed on the upper inner side of the box body (2), air inlets (5) are arranged at the bottoms of both sides of the box body (2), and air outlets (6) are arranged at both sides of the bottom of the box top (1); Shock-absorbing feet (7) are provided at the four corners of the bottom of the box body (2).

2. A heat dissipation device for a photovoltaic grid-connected box according to claim 1, characterized in that: The box top (1) adopts a conical structure.

3. A heat dissipation device for a photovoltaic grid-connected box according to claim 1, characterized in that: The air inlet (5) is a dustproof air inlet window.

4. The heat dissipation device of a photovoltaic grid-connected box according to claim 1, characterized in that: The air outlet (6) is an air outlet pipe arranged vertically downward.

5. The heat dissipation device of a photovoltaic grid-connected box according to claim 1, characterized in that: The shock-absorbing support foot (7) comprises a rubber seat (8), a screw rod (9) and a nut (10); the screw rod (9) is vertically fixed on the top of the rubber seat (8); the nut (10) is threadedly arranged on the rod wall of the screw rod (9); and the bottom of the box body (2) is provided with a screw hole matching the screw rod (9).

6. A heat dissipation device for a photovoltaic grid-connected box according to claim 5, characterized in that: The rubber seat (8) adopts a truncated cone structure.

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