CN221653058U - A photovoltaic controller with good heat dissipation - Google Patents

Abstract

The utility model discloses a photovoltaic controller with good heat dissipation, and relates to the technical field of photovoltaic controllers. It comprises a shell, a rectangular box is fixedly installed near the middle position of the upper inner wall of the shell, a temperature sensor is installed on the lower surface of the rectangular box, a semiconductor refrigeration sheet is installed at the corresponding position of the upper side wall of the rectangular box, a heat dissipation fin is fixedly installed at the corresponding position of the upper surface of the semiconductor refrigeration sheet, an extraction mechanism is installed on the right side of the rectangular box, a dehumidification box is connected to the left side of the rectangular box, an air distribution mechanism is installed on the lower surface of the dehumidification box, and a mounting frame is installed on the left side of the slide of the manual linear module. The utility model allows cold air to circulate in the shell, which can better dissipate heat for the controller body, so that the controller body works at a reasonable temperature, prolongs the service life, facilitates the later maintenance of the controller body, and increases the buffering and shock absorption function of the controller body, so that it is not easily damaged by external impact and vibration.

Description

A photovoltaic controller with good heat dissipation

Technical Field

The utility model relates to the technical field of photovoltaic controllers, in particular to a photovoltaic controller with good heat dissipation.

Background Art

Photovoltaic controller is an automatic control device used in solar power generation system to control the charging of batteries by multi-channel solar cell arrays and the power supply of batteries to solar inverter loads. Photovoltaic controller uses high-speed CPU microprocessor and high-precision A/D analog-to-digital converter, and is a microcomputer data acquisition and monitoring control system. It can not only quickly collect the current working status of the photovoltaic system in real time, obtain the working information of the PV station at any time, but also accumulate the historical data of the PV station in detail, providing an accurate and sufficient basis for evaluating the rationality of PV system design and inspecting the reliability of system component quality.

In the prior art, photovoltaic controllers are generally installed in electrical cabinets, and electrical cabinets are mostly installed outdoors. This results in high temperatures in the electrical cabinets and photovoltaic controllers in the hot summer. The heat dissipation holes on the photovoltaic controller cannot meet the heat dissipation requirements of the photovoltaic controller, resulting in low heat dissipation efficiency. At the same time, the photovoltaic controller housing is mostly divided into two halves and fixedly connected by multiple sets of screws. The screws are easily corroded outdoors for a long time, making it difficult to quickly disassemble and repair the photovoltaic controller in the later stage, making it inconvenient to use.

Utility Model Content

The utility model provides a photovoltaic controller with good heat dissipation to solve the problems in the background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic controller with good heat dissipation, comprising a shell, a rectangular box is fixedly installed on the upper inner wall of the shell near the middle position, a temperature sensor is installed on the lower surface of the rectangular box, a semiconductor refrigeration sheet is installed at the corresponding position of the upper side wall of the rectangular box, a heat dissipation fin is fixedly installed at the corresponding position of the upper surface of the semiconductor refrigeration sheet, an extraction mechanism is installed on the right side of the rectangular box, a dehumidification box is connected to the left side of the rectangular box, an air distribution mechanism is installed on the lower surface of the dehumidification box, a manual linear module is fixedly installed on the upper side wall of the shell near the right position, a mounting frame is installed on the left side of the slide of the manual linear module, spring damping shock absorbers are installed in a rectangular shape on the upper and lower inner walls of the mounting frame, and a mounting plate is installed between the upper and lower spring damping shock absorbers, a controller body is installed on the front side of the mounting plate, a first rectangular opening for the passage of the mounting frame is opened on the lower side wall of the rectangular box, a sealing cover is fixedly installed on the lower surface of the mounting frame, and the upper surface of the sealing cover is in contact with the lower surface of the shell, and a plug-in board is installed on the sealing cover.

Furthermore, side panels are fixedly mounted on the left and right sides of the shell, and mounting holes are provided on the side panels.

Furthermore, the extraction mechanism includes an exhaust fan and a duct, the exhaust fan is installed on the upper inner wall of the shell, the air inlet and outlet of the exhaust fan are both installed with ducts, and the duct corresponding to the air outlet of the exhaust fan is connected to the rectangular box.

Furthermore, the air distribution mechanism includes an air distribution pipe and air outlet holes. The air distribution pipe is installed on the air outlet of the dehumidification box, and the front and rear sides of the air distribution pipe are evenly provided with air outlet holes.

Furthermore, the installation frame and the installation plate are both made of mesh plate material, and a second rectangular opening is opened on the lower side wall of the installation frame and the installation plate.

Furthermore, a rubber sealing ring is fixedly embedded in a position on the lower surface of the shell corresponding to the sealing cover.

Compared with the prior art, the utility model provides a photovoltaic controller with good heat dissipation, which has the following beneficial effects:

1. The photovoltaic controller with good heat dissipation is equipped with an extraction mechanism to draw the hot air in the shell into a rectangular box. After cooling through the semiconductor refrigeration sheet, it is dehumidified through the dehumidification box and then enters the air distribution mechanism. It is then blown into the shell through the air distribution mechanism to dissipate heat and cool the controller body. The cold air circulates in the shell, which can better dissipate the heat of the controller body, make the controller body work at a reasonable temperature, and extend its service life.

2. The photovoltaic controller with good heat dissipation drives the installation frame to move up and down by setting a slide of a manual linear module. The installation frame drives the controller body to move up and down through the installation plate, so that the controller body can leak out of the lower side of the lower side wall of the shell, which is convenient for disassembly of the controller body and later maintenance of the controller body. The spring damping shock absorber increases the buffering and shock-absorbing function of the controller body on the installation plate, making it less susceptible to damage by external impact and vibration.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Fig. 2 is a cross-sectional view of the utility model;

Fig. 3 is a cross-sectional view of a rectangular box of the present invention;

FIG. 4 is a schematic diagram of the installation frame structure of the present utility model.

In the figure: 1. Shell; 2. Rectangular box; 3. Temperature sensor; 4. Semiconductor refrigeration plate; 5. Heat sink fin; 6. Extraction mechanism; 601. Exhaust fan; 602. Conduit; 7. Dehumidification box; 8. Air distribution mechanism; 801. Air distribution pipe; 802. Air outlet; 9. Manual linear module; 10. Installation frame; 11. Spring damping shock absorber; 12. Installation plate; 13. Controller body; 14. First rectangular opening; 15. Sealing cover; 16. Plug-in board; 17. Side panel; 18. Installation hole; 19. Second rectangular opening; 20. Rubber sealing ring.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 4. The utility model discloses a photovoltaic controller with good heat dissipation, including a shell 1, a rectangular box 2 is fixedly installed near the middle position of the upper inner wall of the shell 1, a temperature sensor 3 is installed on the lower surface of the rectangular box 2, a semiconductor refrigeration sheet 4 is installed at the corresponding position of the upper side wall of the rectangular box 2, and a heat dissipation fin 5 is fixedly installed at the corresponding position of the upper surface of the semiconductor refrigeration sheet 4, an extraction mechanism 6 is installed on the right side of the rectangular box 2, a dehumidification box 7 is connected to the left side of the rectangular box 2, and an air distribution mechanism 8 is installed on the lower surface of the dehumidification box 7, and the upper side wall of the shell 1 is near the right side. A manual linear module 9 is fixedly installed on the rectangular box 2, and a mounting frame 10 is installed on the left side of the slide of the manual linear module 9. The upper and lower inner walls of the mounting frame 10 are both rectangularly mounted with spring damping shock absorbers 11, and a mounting plate 12 is installed between the upper and lower spring damping shock absorbers 11. A controller body 13 is installed on the front side of the mounting plate 12. A first rectangular opening 14 for the passage of the mounting frame 10 is opened on the lower side wall of the rectangular box 2. A sealing cover 15 is fixedly installed on the lower surface of the mounting frame 10, and the upper surface of the sealing cover 15 is in contact with the lower surface of the shell 1, and a plug-in board 16 is installed on the sealing cover 15.

Specifically, side panels 17 are fixedly mounted on the left and right sides of the housing 1 , and mounting holes 18 are formed on the side panels 17 .

In this embodiment, the mounting holes 18 on the side panels 17 facilitate installation of the photovoltaic controller in an electrical cabinet.

Specifically, the extraction mechanism 6 includes an exhaust fan 601 and a duct 602. The exhaust fan 601 is installed on the upper inner wall of the shell 1. The duct 602 is installed on the air inlet and outlet of the exhaust fan 601, and the duct 602 corresponding to the air outlet of the exhaust fan 601 is connected to the rectangular box 2.

In this embodiment, the exhaust fan 601 can draw the hot air in the shell 1 into the rectangular box 2 through the duct 602.

Specifically, the air distribution mechanism 8 includes an air distribution pipe 801 and air outlet holes 802 . The air distribution pipe 801 is installed on the air outlet of the dehumidification box 7 . The air outlet holes 802 are evenly opened on the front and rear sides of the air distribution pipe 801 .

In this embodiment, the dry cold air in the air distribution duct 801 is evenly blown into the shell 1 through the air outlet 802 .

Specifically, the installation frame 10 and the installation plate 12 are both made of mesh plate material, and a second rectangular opening 19 is opened on the lower side wall of the installation frame 10 and the installation plate 12 .

In this embodiment, the mounting frame 10 and the mounting plate 12 will not hinder the heat dissipation of the controller body 13 , and the second rectangular opening 19 facilitates the electrical connection between the cable on the controller body 13 and the plug board 16 .

Specifically, a rubber sealing ring 20 is fixedly embedded in a position on the lower surface of the housing 1 corresponding to the sealing cover 15 .

In this embodiment, the rubber sealing ring 20 makes the sealing effect between the sealing cover 15 and the housing 1 better, that is, makes the photovoltaic controller more waterproof.

When in use, the controller body 13 is installed on the mounting plate 12, and the mounting frame 10 is driven upward by the slide of the manual linear module 9. The mounting frame 10 drives the controller body 13 upward through the mounting plate 12, so that the upper surface of the sealing cover 15 on the lower surface of the mounting frame 10 is in contact with the lower surface of the shell 1. On the contrary, the controller body 13 can leak out of the lower side of the lower side wall of the shell 1, which is convenient for disassembly of the controller body 13 and for later maintenance of the controller body 13. At the same time, the spring damping shock absorber 11 increases the buffering and shock absorbing function of the controller body 13 on the mounting plate 12, so that the controller body 13 is not easily damaged by external impact and vibration, and then the temperature sensor 3 is used to measure the temperature inside the shell 1. Monitor, when the temperature is greater than the set value, the exhaust fan 601 in the extraction mechanism 6 can draw the hot air in the shell 1 into the rectangular box 2 through the conduit 602, and the incoming air is cooled by the cooling surface of the lower surface of the semiconductor refrigeration plate 4, and the cold air in the rectangular box 2 flows into the dehumidification box 7, and flows into the air distribution mechanism 8 through the dehumidification box 7, and then the dry cold air in the air distribution pipe 801 in the air distribution mechanism 8 is evenly blown into the shell 1 through the air outlet 802, so as to dissipate heat and cool the controller body 13, so that the cold air circulates in the shell 1, which can better dissipate heat for the controller body 13, make the controller body 13 work at a reasonable temperature, extend the service life, and prevent external rain or dust from entering.

To sum up, the photovoltaic controller with good heat dissipation allows cold air to circulate in the shell 1, which can better dissipate the heat of the controller body 13, so that the controller body 13 works at a reasonable temperature, extending the service life, and at the same time, it is convenient to disassemble the controller body 13, facilitate the later maintenance of the controller body 13, and increase the buffering and shock absorption function of the controller body 13, making it less susceptible to damage by external impact and vibration.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A photovoltaic controller with good heat dissipation, comprising a shell (1), characterized in that: a rectangular box (2) is fixedly installed near the middle position of the upper inner wall of the shell (1), a temperature sensor (3) is installed on the lower surface of the rectangular box (2), a semiconductor refrigeration sheet (4) is installed at a corresponding position on the upper side wall of the rectangular box (2), a heat dissipation fin (5) is fixedly installed at a corresponding position on the upper surface of the semiconductor refrigeration sheet (4), an extraction mechanism (6) is installed on the right side of the rectangular box (2), a dehumidification box (7) is connected to the left side of the rectangular box (2), an air distribution mechanism (8) is installed on the lower surface of the dehumidification box (7), and a hand-operated air conditioner (1) is fixedly installed near the right side of the upper side wall of the shell (1). A manual linear module (9), a mounting frame (10) is installed on the left side of the slide table of the manual linear module (9), spring damping shock absorbers (11) are installed in a rectangular shape on the upper and lower inner walls of the mounting frame (10), and a mounting plate (12) is installed between the upper and lower spring damping shock absorbers (11), a controller body (13) is installed on the front side of the mounting plate (12), a first rectangular opening (14) for the mounting frame (10) to pass through is opened on the lower side wall of the rectangular box (2), a sealing cover (15) is fixedly installed on the lower surface of the mounting frame (10), and the upper surface of the sealing cover (15) is in contact with the lower surface of the shell (1), and a plug-in board (16) is installed on the sealing cover (15). 2. A photovoltaic controller with good heat dissipation according to claim 1, characterized in that: side panels (17) are fixedly installed on the left and right sides of the shell (1), and mounting holes (18) are opened on the side panels (17). 3. A photovoltaic controller with good heat dissipation according to claim 1, characterized in that: the extraction mechanism (6) includes an exhaust fan (601) and a duct (602), the exhaust fan (601) is installed on the upper inner wall of the shell (1), the duct (602) is installed on the air inlet and outlet of the exhaust fan (601), and the duct (602) corresponding to the air outlet of the exhaust fan (601) is connected to the rectangular box (2). 4. A photovoltaic controller with good heat dissipation according to claim 1, characterized in that: the air distribution mechanism (8) includes an air distribution pipe (801) and air outlet holes (802), the air distribution pipe (801) is installed on the air outlet of the dehumidification box (7), and the front and rear sides of the air distribution pipe (801) are evenly provided with air outlet holes (802). 5. A photovoltaic controller with good heat dissipation according to claim 1, characterized in that: the mounting frame (10) and the mounting plate (12) are both made of mesh plate material, and a second rectangular opening (19) is opened on the lower side wall of the mounting frame (10) and the mounting plate (12). 6. A photovoltaic controller with good heat dissipation according to claim 1, characterized in that a rubber sealing ring (20) is fixedly embedded in the lower surface of the housing (1) at a position corresponding to the sealing cover (15).