Special efficient radiator for photovoltaic inverter

Abstract

The utility model discloses a special efficient radiator for a photovoltaic inverter, which comprises a heat conducting plate arranged on the back surface of the photovoltaic inverter, a plurality of radiating fins are arranged on the outer side surface of the heat conducting plate in an annular structure, radiating channels are formed among the radiating fins, a mounting area is surrounded by the plurality of radiating fins, and the radiating fins are arranged in the mounting area. A cooling fan is arranged in the installation area, the air outlet end of the cooling fan faces the heat conduction plate, and an air inlet assembly is installed at the air inlet end of the cooling fan. The heat dissipation device is simple in structure, the heat dissipation fan is directly installed among the multiple heat dissipation fins in a threaded connection mode, so that wind energy generated by the heat dissipation fan is diffused outwards in a circular structure along the flow guide part, and after the wind passes through the concentrated air inlet, the wind can pass through the heat dissipation fan in a concentrated mode, and the heat dissipation efficiency is improved. The flow velocity of the wind is increased, and the wind can be in comprehensive contact with the radiating fins, so that the heat on the photovoltaic inverter can be quickly radiated.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic inverter technology, specifically to a high-efficiency heat sink for photovoltaic inverters. Background Technology

[0002] A photovoltaic (PV) inverter is an inverter that converts the variable DC voltage generated by photovoltaic solar panels into AC power at the mains frequency. PV inverters typically include components such as step-up inductors, inverter inductors, and PCB boards, which generate a lot of heat during operation. To prevent damage caused by insufficient heat dissipation of the internal components, a heat dissipation structure is required.

[0003] In the existing technology, photovoltaic inverters include a photovoltaic inverter heat dissipation structure for heat dissipation. The photovoltaic inverter heat dissipation structure usually includes a fan. However, due to the harsh working environment of photovoltaic inverters, the fan is prone to damage and often needs to be repaired or replaced. When repairing or replacing the fan, it is usually necessary to remove the photovoltaic inverter and remove multiple screws used to fix the fan support bracket to the inverter housing before the fan can be repaired or replaced. This fan has a complex structure, is difficult to disassemble, and the maintenance process is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-efficiency heat sink for photovoltaic inverters. The heat sink fan is easy to install and remove, and can guide the airflow to ensure the contact area with the photovoltaic inverter, so as to achieve a more comprehensive heat dissipation effect, thereby solving the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a high-efficiency heat sink for photovoltaic inverters, including a heat-conducting plate installed on the back of the photovoltaic inverter. Multiple heat dissipation fins are installed in a ring structure on the outer side of the heat-conducting plate, and heat dissipation channels are formed between the heat dissipation fins. The middle of the multiple heat dissipation fins forms an installation area. A cooling fan is installed inside the installation area. The air outlet of the cooling fan faces the heat-conducting plate, and an air inlet component is installed on the air inlet of the cooling fan.

[0006] As a preferred technical solution, the air intake assembly includes a connecting cylinder and an air intake pipe. The outer ring surface of the cooling fan is provided with an external thread. The end of the cooling fins facing the cooling fan is formed with an arc-shaped surface. The arc-shaped surface is in contact with the outer ring surface of the cooling fan. The arc-shaped surface is provided with a first internal thread. The cooling fan is connected to the first internal thread on multiple cooling fins through the external thread.

[0007] The opening of the connecting cylinder is fitted onto the air inlet end of the cooling fan, and a second internal thread is provided on the inner wall surface of the opening of the connecting cylinder. The connecting cylinder is connected to the external thread on the cooling fan through the second internal thread. One end of the air inlet pipe is installed on the connecting cylinder, and the other end is bent and extended in front of the photovoltaic inverter.

[0008] As a preferred technical solution, a limiting ring is installed on the outside of the cooling fan. The inner side of the limiting ring abuts against the outer side of the cooling fins. The opening of the heat dissipation channel facing the cooling fan is covered by the limiting ring to form a concentrated air inlet.

[0009] As a preferred technical solution, the heat-conducting plate protrudes directly opposite the installation area to form a flow guide, with the center of the flow guide being the highest and gradually decreasing towards the outer ring.

[0010] As a preferred technical solution, the heat-conducting plate is provided with multiple fixing holes.

[0011] The beneficial effects of this utility model are as follows: This utility model has a simple structure. The cooling fan is directly installed between multiple cooling fins through a threaded connection, so that the air generated by the cooling fan diffuses outward in a circular structure along the guide section. After passing through the centralized air inlet, the air can pass through the cooling fan in a more concentrated manner, increasing the airflow speed and ensuring comprehensive contact with the cooling fins. This allows for rapid heat dissipation from the photovoltaic inverter. Furthermore, the air drawn by the cooling fan is far away from the back of the photovoltaic inverter, avoiding hot air circulation on the back and ensuring heat dissipation quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention after removing some of the heat dissipation fins;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model after removing the air intake component.

[0017] The components include: 1. Heat-conducting plate; 2. Heat dissipation fins; 3. Limiting ring; 4. Connecting cylinder; 5. Air inlet pipe; 6. Cooling fan; and 7. Air guide section. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a high-efficiency heat sink for photovoltaic inverters, including a heat-conducting plate 1 installed on the back of the photovoltaic inverter. Multiple heat dissipation fins 2 are installed in a ring structure on the outer side of the heat-conducting plate 1, and heat dissipation channels are formed between the heat dissipation fins 2. The middle of the multiple heat dissipation fins 2 surrounds an installation area, and a cooling fan 6 is arranged inside the installation area. The air outlet of the cooling fan 6 is set towards the heat-conducting plate 1, and an air inlet component is installed on the air inlet of the cooling fan 6.

[0022] In this embodiment, the air intake assembly includes a connecting cylinder 4 and an air intake pipe 5. The outer ring surface of the cooling fan 6 is provided with an external thread. The end of the cooling fins 2 facing the cooling fan 6 is formed with an arc surface. The arc surface is in contact with the outer ring surface of the cooling fan 6, and the arc surface is provided with a first internal thread. The cooling fan 6 is connected to the first internal thread on multiple cooling fins 2 through the external thread.

[0023] The opening of the connecting cylinder 4 is fitted onto the air inlet end of the cooling fan 6, and the inner wall surface of the opening of the connecting cylinder 4 is provided with a second internal thread. The connecting cylinder 4 is connected to the external thread on the cooling fan 6 through the second internal thread. One end of the air inlet pipe 5 is installed on the connecting cylinder 4, and the other end is bent and extended in front of the photovoltaic inverter. The end of the air inlet pipe located outside the heat-conducting plate forms a space between the air inlet pipe and the heat-conducting plate for the air inlet pipe to rotate along the outside of the heat-conducting plate.

[0024] In this embodiment, a limiting ring 3 is installed on the outside of the cooling fan 6. The inner side of the limiting ring 3 is set to abut against the outer side of the cooling fins 2. The opening of the heat dissipation channel facing the cooling fan 6 is covered by the limiting ring 3 to form a concentrated air inlet.

[0025] In this embodiment, the heat-conducting plate 1 protrudes to form a flow guide 7 opposite the installation area. The flow guide 7 is highest in the middle and gradually decreases towards the outer ring.

[0026] In this embodiment, the heat-conducting plate 1 is provided with multiple fixing holes, and screws can pass through the heat-conducting plate to fix the heat-conducting plate to the back of the photovoltaic inverter.

[0027] During installation, the cooling fan can be directly threaded into the middle of multiple cooling fins until the limiting ring contacts the cooling fins. The air intake pipe can be threaded into the air intake end of the cooling fan through the connecting cylinder. After the cooling fan starts, it can draw in the cold air in front of the photovoltaic inverter through the air intake pipe. This cold air is discharged from the air outlet of the cooling fan and blown onto the guide section. The guide section allows the cold air to diffuse in a circular structure. After passing through the centralized air inlet, the air can pass through the cooling fan in a more concentrated manner. The centralized air inlet increases the airflow speed and allows the air to pass through in a lateral direction, so that it can fully contact the cooling fins, thereby quickly dissipating the heat on the photovoltaic inverter.

[0028] Since the extracted air and the exhaust air are not in the same area, hot air circulation is avoided, and the heat dissipation effect is increased by extracting cold air.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A high efficient heat sink for photovoltaic inverter, characterized in that: The application relates to a heat-conducting plate (1) installed on the back of a photovoltaic inverter, a plurality of heat-dissipating fins (2) are arranged in a ring structure on the outer side of the heat-conducting plate (1), heat-dissipating channels are formed between the heat-dissipating fins (2), the middle of the plurality of heat-dissipating fins (2) forms an installation area, a heat-dissipating fan (6) is arranged in the installation area, the air outlet end of the heat-dissipating fan (6) is arranged towards the heat-conducting plate (1), and an air inlet assembly is arranged on the air inlet end of the heat-dissipating fan (6).

2. The high efficient heat sink for photovoltaic inverter according to claim 1, characterized in that: The air inlet assembly comprises a connecting cylinder (4) and an air inlet pipe (5), the outer circle surface of the heat-dissipating fan (6) is provided with external threads, the end of the heat-dissipating fin (2) towards the heat-dissipating fan (6) is formed into an arc surface, the arc surface is in contact with the outer circle surface of the heat-dissipating fan (6), and the arc surface is provided with first internal threads, the heat-dissipating fan (6) is connected with the plurality of heat-dissipating fins (2) through the external threads and the first internal threads; the opening of the connecting cylinder (4) is arranged on the air inlet end of the heat-dissipating fan (6), the inner wall surface of the opening of the connecting cylinder (4) is provided with second internal threads, the connecting cylinder (4) is connected with the heat-dissipating fan (6) through the second internal threads and the external threads, one end of the air inlet pipe (5) is arranged on the connecting cylinder (4), and the other end is bent and extended to the front of the photovoltaic inverter.

3. The high efficient heat sink for photovoltaic inverter according to claim 1, characterized in that: The heat-dissipating fan (6) is externally provided with a limiting ring (3), the inner side of the limiting ring (3) is in contact with the outer side of the heat-dissipating fin (2), the opening of the heat-dissipating channel towards the heat-dissipating fan (6) is covered by the limiting ring (3) to form a concentrated air inlet.

4. The high efficient heat sink for photovoltaic inverter according to claim 1, characterized in that: The heat-conducting plate (1) is protruded at the installation area to form a flow guide part (7), the middle of the flow guide part (7) is the highest, and gradually decreases towards the outer circle.

5. The high efficient heat sink for photovoltaic inverter according to claim 1, characterized in that: A plurality of fixing holes are arranged on the heat-conducting plate (1).

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