Heat dissipation structure of solar controller

Abstract

The utility model provides a heat dissipation structure of a solar controller, which belongs to the technical field of photovoltaic controllers and comprises a controller shell, a sealing cover plate, a ventilation dustproof net, a partition plate, a mounting frame, a support, a controller component, a surface-mounted temperature sensor, a sintering heat pipe, a heat dissipation sheet and a heat dissipation fan. According to the utility model, the radiating fins hung at the upper ends of the controller components can absorb heat emitted upwards by the controller components from the upper ends, and the fins of the radiating fins are trapezoidal, so that the radiating fins can fully absorb the heat from a heat source part and quickly transfer the heat to a thinner area around, thereby improving the radiating efficiency and reducing the heat loss. The inclination angle of the flow guide grooves of the cooling fins is 15 degrees, natural convection airflow can be guided to pass through a cooling area in an accelerated mode, the circulation performance of air in the controller can be improved, heat on the side faces of controller components can be rapidly conducted to the far-end cooling fins through the sintering heat pipes, the cooling temperature difference can be reduced, and the service life of the controller is prolonged. And the condition of overlarge regional cooling difference is reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic controller technology, and in particular to a heat dissipation structure for a solar controller. Background Technology

[0002] With the development of technology, solar photovoltaic charging is now ubiquitous. The solar controller is the core component of solar equipment. It is a solar charge and discharge controller used in solar power generation systems to control the charging of batteries by multiple solar cell arrays and the power supply of batteries to solar inverter loads. It is mainly responsible for managing the storage and use of electrical energy. If the controller malfunctions, solar-powered equipment will not work properly or may even be damaged. In severe cases, it may lead to a fire.

[0003] Most solar energy equipment needs to be placed in locations with well-regulated sunlight. The controller is easily affected by the environment, and heat is conducted to the controller, resulting in a high ambient temperature. Furthermore, the controller generates heat due to excessive power during prolonged operation, which can damage the battery. Therefore, the heat dissipation problem of the controller is the primary issue to be addressed.

[0004] Existing controllers have internal heat sinks to absorb heat from the controller components. However, the heat sink fins are rectangular and regular in shape. When the heat sink absorbs heat from the heat source, it can only conduct heat at a uniform speed. This results in poor heat absorption and heat dissipation efficiency of the heat sink at high temperatures, causing the controller's heat dissipation structure to be overloaded.

[0005] Furthermore, the closer the position is to the heat sink, the stronger the heat absorption effect on the controller components; the farther the position is from the heat sink, the weaker the heat absorption effect on the controller components. However, the heat sink cannot cover the entire component area, resulting in a heat dissipation temperature difference, with some areas having excessively large differences in cooling and heat dissipation.

[0006] Therefore, this application provides a heat dissipation structure for a solar controller to meet the requirements. Utility Model Content

[0007] The purpose of this invention is to solve the problems existing in the above-mentioned background technology by proposing a heat dissipation structure for a solar controller.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A heat dissipation structure for a solar controller includes: a controller housing, a sealing cover, a ventilation and dustproof mesh, a partition plate, a mounting bracket, a support, controller components, a surface-mount temperature sensor, a sintered heat pipe, a heat sink, and a cooling fan. The controller housing has a wiring port on its side, an air outlet on its front, an air inlet on its back, a sealing cover on its top, a ventilation and dustproof mesh at the air outlet, a partition plate integrally formed on the surface of the controller housing, a mounting bracket at the bottom, a support at the lower interior of the controller housing, controller components mounted on the inner side of the support, a surface-mount temperature sensor mounted on the side of the controller components on the support, a sintered heat pipe mounted at the upper interior of the controller housing, a heat sink at the bottom of the sealing cover, and a cooling fan at the air inlet of the controller housing.

[0010] Preferably, the patch temperature sensor is electrically connected to the cooling fan via a wire.

[0011] Preferably, the bottom of the bracket is spaced apart from the controller housing by three sets of vertical supports, and the air inlet and air outlet are located at the left and right ends of the controller components, respectively.

[0012] Preferably, the heat sink is suspended inside the upper part of the controller housing by a sealing cover plate, the heat sink is located above the controller components, and there is a gap between the heat sink and the controller components.

[0013] Preferably, the heat sink has staggered needle-shaped fins, and the fins of the heat sink are trapezoidal.

[0014] Preferably, the heat sink has an arc-shaped guide groove with an inclination angle of 15°, and the openings on both sides of the guide groove are respectively positioned opposite to the air inlet and air outlet.

[0015] Preferably, the sintered heat pipe is provided in two sets, with the two sets of sintered heat pipes located at the left and right ends of the heat sink respectively, and one end of the sintered heat pipe extends vertically to the side of the controller component, and the other end of the sintered heat pipe extends horizontally to the side of the heat sink.

[0016] Preferably, the partition plate is provided in four sets, with the four sets of partition plates located at the outer ends of the left and right sides of the air inlet and air outlet, respectively, and the partition plates extending longitudinally to the outer end of the controller housing.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects:

[0018] In the above solution, the heat sink suspended above the controller components can absorb the heat dissipated upwards from the controller components. The heat sink has staggered needle-shaped fins and the fins are trapezoidal, which helps the heat sink to fully absorb heat from the heat source and quickly transfer it to the surrounding thinner areas, thereby improving heat dissipation efficiency.

[0019] In the above solution, by setting the heat sink's guide groove to be arc-shaped with an inclination angle of 15°, and setting the openings on both sides of the heat sink's guide groove opposite to the air inlet and air outlet respectively, it can guide natural convection airflow to accelerate through the heat dissipation area. This allows the air blown out by the cooling fan to quickly carry away the heat absorbed by the heat sink from the guide groove and be discharged from the air outlet, thereby improving the air circulation inside the controller.

[0020] In the above scheme, two sets of sintered heat pipes are set up. The two sets of sintered heat pipes are located at the left and right ends of the heat sink respectively. One end of the sintered heat pipe extends vertically to the side of the controller components, and the other end of the sintered heat pipe extends horizontally to the side of the heat sink. The sintered heat pipes can quickly conduct heat from the side to the far end of the heat sink, which can reduce the heat dissipation temperature difference and reduce the situation of excessive regional temperature difference. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the specific structure of the sintered heat pipe of this utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat sink of this utility model.

[0026] [Figure Labels]

[0027] 1-Controller housing; 2-Sealing cover; 3-Ventilation and dustproof mesh; 4-Divider plate; 5-Mounting bracket; 6-Bracket; 7-Controller components; 8-Surface mount temperature sensor; 9-Sintered heat pipe; 10-Heat sink; 11-Cooling fan; 101-Wiring port; 102-Air inlet; 103-Air outlet.

[0028] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0029] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4The heat dissipation structure of a solar controller, as shown in the embodiment of this utility model, includes: a controller housing 1, a sealing cover 2, a ventilation and dustproof mesh 3, a partition plate 4, a mounting bracket 5, a support 6, controller components 7, a surface-mount temperature sensor 8, a sintered heat pipe 9, a heat sink 10, and a cooling fan 11. A wiring port 101 is provided on the side of the controller housing 1, an air outlet 103 is provided on the front of the controller housing 1, an air inlet 102 is provided on the back of the controller housing 1, and a sealing cover 2 is installed on the top of the controller housing 1. A ventilation and dustproof mesh 3 is installed at the air outlet 103 of the body 1. A partition plate 4 is integrally formed on the surface of the controller housing 1. A mounting bracket 5 is installed at the bottom of the controller housing 1. A bracket 6 is installed at the lower end of the inside of the controller housing 1. A controller component 7 is installed on the inside of the bracket 6. A surface-mount temperature sensor 8 is installed on the side of the controller component 7 on the bracket 6. A sintered heat pipe 9 is installed at the upper end of the inside of the controller housing 1. A heat sink 10 is installed at the bottom of the sealing cover plate 2. A cooling fan 11 is installed at the air inlet 102 of the controller housing 1.

[0032] In this embodiment, the surface mount temperature sensor 8 is electrically connected to the cooling fan 11 via a wire. The surface mount temperature sensor 8 can sense the temperature of the controller components 7, and when the temperature reaches a certain value, the cooling fan 11 is activated for air cooling.

[0033] In this embodiment, the bottom of the bracket 6 is spaced apart from the controller housing 1 by three sets of vertical supports. The air inlet 102 and the air outlet 103 are located at the left and right ends of the controller components 7, respectively. The gap between the bracket 6 and the controller housing 1 provides heat dissipation space for the controller components 7.

[0034] In this embodiment, the heat sink 10 is suspended at the upper end of the inside of the controller housing 1 by the sealing cover plate 2. The heat sink 10 is located at the upper end of the controller component 7, and there is a gap between the heat sink 10 and the controller component 7. The heat sink 10 suspended at the upper end of the controller component 7 can absorb the heat dissipated upward from the controller component 7.

[0035] In this embodiment, the heat sink 10 has staggered needle-shaped fins and the fins of the heat sink 10 are trapezoidal. This design helps the heat sink to fully absorb heat from the heat source and quickly transfer it to the surrounding thinner area, thereby improving heat dissipation efficiency.

[0036] In this embodiment, the guide groove of the heat sink 10 is arc-shaped and the inclination angle of the guide groove is set at 15°. The openings on both sides of the guide groove of the heat sink 10 are respectively arranged opposite to the air inlet 102 and the air outlet 103. This can guide the natural convection airflow to accelerate through the heat dissipation area, so that the air blown out by the cooling fan 11 can quickly take away the heat absorbed by the heat sink 10 from the guide groove of the heat sink 10 and be discharged from the air outlet 103, which can improve the air circulation inside the controller.

[0037] In this embodiment, two sets of sintered heat pipes 9 are provided. The two sets of sintered heat pipes 9 are located at the left and right ends of the heat sink 10, respectively. One end of the sintered heat pipe 9 extends vertically to the side of the controller component 7, and the other end of the sintered heat pipe 9 extends horizontally to the side of the heat sink 10. The sintered heat pipe 9 can quickly conduct heat from the side to the far end of the heat sink 10, which can reduce the heat dissipation temperature difference and reduce the situation of excessive regional cooling.

[0038] In this embodiment, four sets of partition plates 4 are provided. The four sets of partition plates 4 are located at the outer ends of the left and right sides of the air inlet 102 and the air outlet 103, respectively. The partition plates 4 extend longitudinally to the outer end of the controller housing 1. After the controller housing 1 is installed, the air inlet 102 and the air outlet 103 are separated, so as to avoid other components or connecting wires from blocking the air inlet 102 and the air outlet 103 after installation, thus ensuring the airflow during ventilation and heat dissipation.

[0039] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat dissipation structure of a solar controller, characterized by, The utility model relates to a controller, including: Controller shell (1), sealing cover plate (2), ventilation dust screen (3), partition plate (4), mounting frame (5), support (6), controller component (7), patch temperature sensor (8), sintered heat pipe (9), heat dissipation fin (10) and heat dissipation fan (11), the side of controller shell (1) is provided with wiring port (101), the front of controller shell (1) is provided with air outlet (103), the back of controller shell (1) is provided with air inlet (102), the top of controller shell (1) is installed sealing cover plate (2), the air outlet (103) of controller shell (1) is installed ventilation dust screen (3), the surface of controller shell (1) is integrally formed with partition plate (4), the bottom of controller shell (1) is installed mounting frame (5), the inside lower end of controller shell (1) is installed support (6), the inside of support (6) is installed controller component (7), the side of support (6) located controller component (7) is installed patch temperature sensor (8), the inside upper end of controller shell (1) is installed sintered heat pipe (9), the bottom of sealing cover plate (2) is installed heat dissipation fin (10), the air inlet (102) of controller shell (1) is installed heat dissipation fan (11).

2. The heat dissipation structure of a solar controller according to claim 1, wherein: The patch temperature sensor (8) is electrically connected between the electric wire and the heat dissipation fan (11).

3. The heat dissipation structure of a solar controller according to claim 1, wherein: The bottom of the support (6) is spaced apart from the controller shell (1) by three vertical supports, and the air inlet (102) and the air outlet (103) are respectively located at the left and right ends of the controller component (7).

4. The heat dissipation structure of a solar controller according to claim 1, wherein: The heat dissipation fin (10) is suspended at the inside upper end of the controller shell (1) by the sealing cover plate (2), the heat dissipation fin (10) is located at the upper end of the controller component (7), and the heat dissipation fin (10) is spaced apart from the controller component (7).

5. The heat dissipation structure of a solar controller according to claim 1, wherein: The heat dissipation fin (10) is an interlaced needle fin, and the fin of the heat dissipation fin (10) is in a trapezoidal shape.

6. The heat dissipation structure of a solar controller according to claim 1, wherein: The flow guide groove of the heat dissipation fin (10) is in an arc shape, the inclination angle of the flow guide groove is 15°, and the openings on both sides of the flow guide groove of the heat dissipation fin (10) are respectively opposite to the air inlet (102) and the air outlet (103).

7. The heat dissipation structure of a solar controller according to claim 1, wherein: The sintered heat pipe (9) is provided with two groups, and the two groups of sintered heat pipes (9) are respectively located at the left and right ends of the heat dissipation fin (10), one end of the sintered heat pipe (9) extends vertically to the side of the controller component (7), and the other end of the sintered heat pipe (9) extends transversely to the side of the heat dissipation fin (10).

8. The heat dissipation structure of a solar controller according to claim 1, wherein: The partition plate (4) is provided with four groups, and the four groups of partition plates (4) are respectively located at the left and right outer ends of the air inlet (102) and the air outlet (103), and the partition plate (4) extends longitudinally to the outer end of the controller shell (1).

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