Heat dissipation device for high-power photovoltaic optimizer

Abstract

The utility model provides a high-power photovoltaic optimizer heat dissipation device, relates to the photovoltaic industry technical field, and comprises a housing and a mounting plate, the inner surface of the housing is symmetrically and fixedly provided with support columns, the top ends of the support columns are fixedly provided with bolts, the outer walls of the bolts are slidably connected with a PCB, and the outer walls of the bolts are in threaded connection with nuts. According to the utility model, heat can be quickly conducted and dissipated through a high-efficiency heat dissipation path formed by the heat-conducting silicone grease, the PCB metal heat-conducting block, the insulating aluminum oxide ceramic chip and the external heat dissipation sheet, so that a heating device is prevented from being in a high-temperature environment for a long time, the aging speed of the heating device is greatly slowed down, the service life of the heating device is prolonged, and the service life of the heating device is prolonged. According to the photovoltaic optimizer, the frequency of replacing equipment due to element aging is reduced, and meanwhile, the stable working temperature enables the performance of a heating device to be kept in a good state, so that the working efficiency of the photovoltaic optimizer is improved, stable operation of the photovoltaic optimizer is guaranteed, and abnormal working conditions caused by the temperature problem are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic industry technical field especially relates to a high -power photovoltaic optimizer heat abstractor. BACKGROUND

[0002] With the continuous development of photovoltaic power generation technology, high-power photovoltaic optimizer plays a key role in improving the power generation efficiency of photovoltaic system. In actual operation, the power density of high-power photovoltaic optimizer continues to increase, and the internal heating device will generate a large amount of heat. If these heat cannot be effectively dissipated in time, the internal temperature of the optimizer will be too high, which will not only make the performance of electronic components decline, affect the working efficiency and stability of the photovoltaic optimizer, but also accelerate the aging of components, shorten its service life, increase the maintenance cost and failure risk of equipment.

[0003] At present, some existing heat dissipation methods, such as simple natural heat dissipation or ordinary air cooling, are difficult to meet the increasing heat dissipation demand of high-power photovoltaic optimizer, so improvement is needed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems mentioned in the background art and provides a high-power photovoltaic optimizer heat abstractor.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-power photovoltaic optimizer heat abstractor, comprising a shell and a mounting plate, the inner surface of the shell is symmetrically fixedly installed with a support column, the top end of the support column is fixedly installed with a bolt, the outer wall of the bolt is slidably connected with a PCB board, the outer wall of the bolt is threadedly connected with a nut, the top of the PCB board is fixedly installed with a heating device, the outer surface of the heating device is smeared with a heat-conducting silicone grease, the top of the PCB board is installed with a PCB metal heat-conducting block, the top of the PCB metal heat-conducting block is fixedly installed with an insulating alumina ceramic sheet, and the inside of the shell is fixedly installed with an external fin.

[0006] Preferably, the PCB metal heat-conducting block and the PCB board are fixed by screws.

[0007] Preferably, the PCB metal heat-conducting block and the heating device are mutually attached.

[0008] Preferably, the insulating alumina ceramic sheet and the external fin are mutually attached.

[0009] Preferably, the mounting plate is located on one side of the shell, and the mounting plate and the shell are fixedly connected.

[0010] Preferably, the surface of the mounting plate is symmetrically provided with a mounting hole.

[0011] Compared with the prior art, the high-power photovoltaic optimizer heat dissipation device has the advantages and positive effects that,

[0012] In the utility model, through the high -efficient radiating path that is composed of heat conduction silicone grease, PCB metal heat conduction block, insulating alumina ceramic sheet and external fin, heat can be quickly conducted and dissipate, avoid the heating device long time in high temperature environment, this greatly slows down the aging speed of heating device, prolongs its service life, reduces the frequency of equipment because element aging and needs replacement, simultaneously, stable working temperature makes the performance of heating device can keep good state, thereby improves the working efficiency of photovoltaic optimizer, guarantees its stable operation, reduces the working abnormal situation caused by temperature problem. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The utility model proposes a kind of overall structure schematic diagram of high-power photovoltaic optimizer heat dissipation device;

[0014] Fig. 2 The utility model proposes a kind of partial structure section view schematic diagram of high-power photovoltaic optimizer heat dissipation device;

[0015] Fig. 3 The utility model proposes a kind of partial structure explosion schematic diagram of high-power photovoltaic optimizer heat dissipation device.

[0016] Legend explanation: 1, shell;2, mounting plate;3, support column;4, bolt;5, PCB board;6, nut;7, heating device;8, heat-conducting silicone grease;9, PCB metal heat conduction block;10, insulating alumina ceramic sheet;11, external fin;12, screw;13, mounting hole. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples.It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0019] Embodiment: as Figs. 1-3The utility model provides a technical scheme: a high -power photovoltaic optimizer heat abstractor, including casing 1 and mounting plate 2, the inner surface symmetry fixed mounting of casing 1 has support column 3, the top fixed mounting of support column 3 has bolt 4, the outer wall sliding connection of bolt 4 has PCB board 5, the outer wall screw thread connection of bolt 4 has nut 6, the top fixed mounting of PCB board 5 has heat generating device 7, the outer surface of heat generating device 7 is daubed with heat -conducting silicone grease 8, the top of PCB board 5 is installed with PCB metal heat -conducting block 9, the top fixed mounting of PCB metal heat -conducting block 9 has insulating alumina ceramic sheet 10, the inside fixed mounting of casing 1 has external fin 11, and the fixed between PCB metal heat -conducting block 9 and PCB board 5 through screw 12, and the mutual adhesion between PCB metal heat -conducting block 9 and heat generating device 7, the mutual adhesion between insulating alumina ceramic sheet 10 and external fin 11, mounting plate 2 is located at the side of casing 1, and mounting plate 2 is fixedly connected with casing 1, and the surface of mounting plate 2 is symmetrically penetrated and set up mounting hole 13.

[0020] In the embodiment, through the high -efficient heat dissipation path of heat -conducting silicone grease 8, PCB metal heat -conducting block 9, insulating alumina ceramic sheet 10 and external fin 11, heat can be quickly conducted and dissipate, avoid heat generating device 7 long time in high temperature environment, this greatly slows down the aging speed of heat generating device 7, prolongs its service life, reduces the frequency that equipment needs to replace due to element aging, simultaneously, stable working temperature makes heat generating device 7 performance can keep good state, to improve the work efficiency of photovoltaic optimizer, guarantee its stable operation, reduce the work abnormal situation due to temperature problem.

[0021] The working principle of the embodiment is as follows: when the high-power photovoltaic optimizer works, the heat generating device 7 on the PCB 5 generates heat, since the outer surface of the heat generating device 7 is smeared with the heat-conducting silicone grease 8, the heat-conducting silicone grease 8 has good heat-conducting performance, can effectively fill the tiny gap between the heat generating device 7 and the surrounding components, and enhance the heat conduction efficiency, the heat is transmitted to the PCB metal heat-conducting block 9 through the heat-conducting silicone grease 8, the PCB metal heat-conducting block 9 is fixed with the PCB 5 through the screw 12, good thermal contact is ensured, so that the heat can be quickly transmitted from the heat generating device 7 to the PCB metal heat-conducting block 9, then the PCB metal heat-conducting block 9 transmits the heat to the insulating alumina ceramic sheet 10 fixedly installed on the top of the PCB metal heat-conducting block 9, the insulating alumina ceramic sheet 10 not only has good insulation performance to prevent circuit short circuit, but also has high thermal conductivity to further conduct the heat upward, the insulating alumina ceramic sheet 10 is attached to the external heat sink 11, the external heat sink 11 is fixedly installed in the shell 1, has a large surface area, and can quickly dissipate the heat from the insulating alumina ceramic sheet 10 to the surrounding air, in this process, the heat is sequentially conducted and dissipated through the heat generating device 7, the heat-conducting silicone grease 8, the PCB metal heat-conducting block 9, the insulating alumina ceramic sheet 10 and the external heat sink 11, and high-efficiency heat dissipation is realized.

[0022] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms, any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belong to the protection scope of the present application.

Claims

1. A high power photovoltaic optimizer heat sink device comprising a housing (1) and a mounting plate (2), characterized in that: The inner surface of the shell (1) is symmetrically fixedly installed with a support column (3), the top end of the support column (3) is fixedly installed with a bolt (4), the outer wall of the bolt (4) is slidably connected with a PCB board (5), the outer wall of the bolt (4) is threadedly connected with a nut (6), the top of the PCB board (5) is fixedly installed with a heat generating device (7), the outer surface of the heat generating device (7) is smeared with a heat-conducting silicone grease (8), the top of the PCB board (5) is installed with a PCB metal heat-conducting block (9), the top of the PCB metal heat-conducting block (9) is fixedly installed with an insulating alumina ceramic sheet (10), and the inside of the shell (1) is fixedly installed with an external heat sink (11).

2. The high power photovoltaic optimizer heat sink of claim 1, wherein: The PCB metal heat-conducting block (9) and the PCB board (5) are fixed through a screw (12).

3. The high power photovoltaic optimizer heat sink of claim 1, wherein: The PCB metal heat-conducting block (9) and the heat generating device (7) are mutually attached.

4. The high power photovoltaic optimizer heat sink of claim 1, wherein: The insulating alumina ceramic sheet (10) and the external heat sink (11) are mutually attached.

5. The high power photovoltaic optimizer heat sink of claim 1, wherein: The mounting plate (2) is located on one side of the shell (1), and the mounting plate (2) is fixedly connected with the shell (1).

6. The high power photovoltaic optimizer heat sink of claim 1, wherein: Symmetrical mounting holes (13) are formed in the surface of the mounting plate (2).

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