PWM photovoltaic special controller with multifunctional interface

Abstract

The utility model relates to the technical field of photovoltaic controllers, in particular to a PWM (Pulse Width Modulation) photovoltaic special controller with a multifunctional interface, which comprises a bottom plate, a mounting shell is fixedly arranged at the top of the bottom plate, a PCB is arranged in the mounting shell, a PWM controller is mounted at the top of the PCB, a temperature component is mounted on the right side of the top of the PCB, a first charging port and a second charging port are formed in the right side of the mounting shell, the first charging port is located on the rear side of the second charging port, and a wiring port is formed in the left side of the front face of the mounting shell. The number of the wiring ports is three, and the PWM controller is electrically connected with the temperature component. According to the utility model, the PWM controller and the temperature component are arranged, the temperature component can detect the temperature, and when the temperature is detected to reach a threshold value, the PWM controller receives a signal of the temperature component so as to automatically cut off a power supply, so that the overheating of equipment is prevented; therefore, the charging requirements of different devices can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic controllers, in particular to a PWM photovoltaic dedicated controller with a multifunctional interface. Background Art

[0002] The PWM photovoltaic controller is a current-controlled controller that switches the input current of the photovoltaic array through the PWM pulse mode to adjust the output power of the photovoltaic system. The working principle of the PWM controller is mainly to control the voltage and current in the circuit by changing the pulse width, thereby adjusting the output power of the photovoltaic system.

[0003] Most existing photovoltaic controllers currently use a simple thermal protection mechanism, which lacks intelligence in temperature control and cannot accurately control the temperature, which may cause equipment overheating and damage or reduced efficiency. In addition, the interface types are limited and cannot adapt to the charging needs of different devices.

[0004] Therefore, in view of the above-mentioned problems that most of the currently existing photovoltaic controllers adopt a simple thermal protection mechanism, lack intelligence in temperature control, and cannot accurately control the temperature, which may cause the equipment to overheat and be damaged or the efficiency to decrease, and the interface types are limited and cannot adapt to the charging needs of different devices, a PWM photovoltaic dedicated controller with a multi-functional interface can be designed. By setting a PCB board, a PWM controller and a temperature component, the temperature component can detect the temperature. When it is detected that the temperature reaches the threshold, the PWM controller receives the signal from the temperature component and can automatically cut off the power supply, thereby preventing the equipment from overheating and improving the life and safety of the equipment. By setting charging port one and charging port two, the charging needs of different devices can be met. Utility Model Content

[0005] To overcome this problem, most existing photovoltaic controllers use simple thermal protection mechanisms and have limited interface types, which cannot adapt to the charging needs of different devices. At the same time, these controllers lack intelligence in temperature control and cannot accurately control the temperature, which may cause equipment overheating and damage or reduced efficiency.

[0006] The technical solution of the utility model is: a PWM photovoltaic-specific controller with a multi-functional interface, comprising a base plate; a mounting shell is fixedly provided on the top of the base plate, a PCB board is provided inside the mounting shell, a PWM controller is installed on the top of the PCB board, a temperature component is installed on the right side of the top of the PCB board, a charging port 1 and a charging port 2 are provided on the right side of the mounting shell, the charging port 1 is located behind the charging port 2, a wiring port is provided on the left side of the front of the mounting shell, and there are three wiring ports, and the PWM controller is electrically connected to the temperature component.

[0007] Preferably, the setting of the PCB board facilitates the installation of the PWM controller and temperature components. The temperature component is an NTC thermistor, which can detect the heat inside the installation shell. When the temperature component detects that the temperature reaches the threshold, the PWM controller will immediately cut off the current supply after receiving the signal sent by the temperature component, so that the temperature inside the installation shell can gradually drop, thereby playing a role in high temperature protection. The first charging port is a TYPE-C charging port, and the second charging port is a USB-A charging port to meet the charging needs of different devices. The wiring port is an XT60 port, which has an anti-foolproof design and can effectively avoid the problem of reverse connection of positive and negative poles or wrong connection of wires. The wiring method is simple, and only needs to be plugged in and out, thereby realizing quick connection and disassembly between components without the assistance of any tools.

[0008] Preferably, heat dissipation holes 1 are provided at both left and right ends of the rear side of the installation shell, and heat dissipation hole 2 is provided at the right side of the front side of the installation shell.

[0009] Preferably, mounting holes are provided at both the front and rear ends of the left side of the mounting shell, filters are installed on the left and right sides of the mounting holes, a cooling fan is installed between the left and right filters, and the cooling fan is electrically connected to the PWM controller and temperature components.

[0010] Preferably, waterproof covers are fixedly provided on the left and right ends of the rear side of the installation shell and the right side of the front side of the installation shell, and the waterproof covers are located outside the first heat dissipation hole and the second heat dissipation hole.

[0011] Preferably, a display screen is provided on the top left side of the installation shell, and three control buttons are provided on the top right side of the installation shell. The display screen and the control buttons are electrically connected to the PWM controller and the temperature components.

[0012] Preferably, mounting studs are fixedly provided at the four corners of the inner bottom of the mounting shell, and mounting screw holes 1 are opened at the four corners of the top of the PCB board, and the mounting screw holes 1 match the mounting studs.

[0013] Preferably, two mounting screw holes are provided at the four corners of the top of the bottom plate, and clearance grooves are provided on the left and right sides and the front and back ends of the mounting shell, and the clearance grooves match the two mounting screw holes.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting up a PCB board, a PWM controller, a temperature component, charging port 1 and charging port 2, the temperature component can detect the temperature inside the installation shell. When the detected temperature reaches the threshold, the PWM controller can cut off the current supply after receiving the signal from the temperature component, thereby playing a role in high temperature protection. Among them, charging port 1 is a TYPE-C charging port, and charging port 2 is a USB-A charging port to meet the charging needs of different devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a PWM photovoltaic controller with a multi-functional interface of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the internal three-dimensional structure of the mounting shell of a PWM photovoltaic dedicated controller with a multi-functional interface of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the left side of a 3D structure of a PWM photovoltaic controller with a multifunctional interface of the present invention;

[0019] Figure 4 Shown is a three-dimensional cross-sectional schematic diagram of the mounting studs of a PWM photovoltaic dedicated controller with a multi-functional interface of the present invention.

[0020] Explanation of the accompanying symbols: 1. Base plate; 2. Mounting shell; 3. PCB board; 4. PWM controller; 5. Temperature component; 6. Charging port 1; 7. Charging port 2; 8. Wiring port; 9. Heat dissipation hole 1; 10. Heat dissipation hole 2; 11. Mounting hole; 12. Filter; 13. Cooling fan; 14. Waterproof cover; 15. Mounting screw hole 1; 16. Mounting stud; 17. Display screen; 18. Control button; 19. Mounting screw hole 2; 20. Clearance slot. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figures 1-4The utility model provides an embodiment: a PWM photovoltaic dedicated controller with a multifunctional interface, comprising a base plate 1; a mounting shell 2 is fixedly provided on the top of the base plate 1, a PCB board 3 is provided inside the mounting shell 2, a PWM controller 4 is installed on the top of the PCB board 3, a temperature component 5 is installed on the right side of the top of the PCB board 3, a charging port 1 6 and a charging port 2 7 are provided on the right side of the mounting shell 2, the charging port 1 6 is located behind the charging port 2 7, a wiring port 8 is provided on the left side of the front of the mounting shell 2, and there are three wiring ports 8. The PWM controller 4 is electrically connected to the temperature component 5. The arrangement of the PCB board 3 facilitates the installation of the PWM controller 4 and the temperature component 5. The temperature component 5 is N TC thermistor, which can detect the heat inside the mounting shell 2. When the temperature component 5 detects that the temperature reaches the threshold, the PWM controller 4 will immediately cut off the current supply after receiving the signal sent by the temperature component 5, so that the temperature inside the mounting shell 2 can gradually drop, thereby playing a role in high temperature protection. Among them, charging port 1 6 is a TYPE-C charging port, and charging port 2 7 is a USB-A charging port to meet the charging needs of different devices. The wiring port 8 is an XT60 port, which has an anti-foolproof design and can effectively avoid the problem of reverse connection of positive and negative poles or wrong connection of wires. The wiring method is simple, and only needs to be plugged in and out, thereby realizing quick connection and disassembly between components without the assistance of any tools.

[0023] See also Figure 1-Figure 3 In this embodiment, a heat dissipation hole 9 is provided at both ends of the rear side of the mounting shell 2, a heat dissipation hole 2 is provided on the right side of the front side of the mounting shell 2, a mounting hole 11 is provided at both ends of the left and right sides of the mounting hole 11, a filter 12 is provided on both sides of the left and right sides of the mounting hole 11, a cooling fan 13 is provided between the filter 12 on both sides, and the cooling fan 13 is electrically connected to the PWM controller 4 and the temperature component 5. A waterproof cover 14 is fixedly provided at both ends of the rear side of the mounting shell 2 and the right side of the front side of the mounting shell 2. The waterproof cover 14 is located outside the heat dissipation hole 1 9 and the heat dissipation hole 2 10. A display screen 17 is provided on the left side of the top of the mounting shell 2, and three control buttons 18 are provided on the right side of the top of the mounting shell 2. The display screen 17 and the control button 1 8 is electrically connected to the PWM controller 4 and the temperature element 5. After the temperature element 5 senses that the temperature reaches the threshold, the PWM controller 4 will control the cooling fan 13 to start, and the cooling fan 13 can blow the outside air into the interior of the mounting shell 2 through the mounting hole 11, and the air is dissipated through the heat dissipation hole 1 9 and the heat dissipation hole 2 10, thereby forming a good air duct, thereby accelerating the heat dissipation speed inside the mounting shell 2, wherein the setting of the waterproof cover 14 can shield the heat dissipation hole 1 9 and the heat dissipation hole 2 10, thereby preventing moisture from directly flowing into the interior of the mounting shell 2 through the heat dissipation hole 1 9 and the heat dissipation hole 2 10, and the setting of the display screen 17 and the control button 18 can control the photovoltaic controller.

[0024] See also Figures 1-4 In this embodiment, mounting studs 16 are fixedly provided at the four corners of the bottom of the interior of the mounting shell 2, mounting screw holes 15 are provided at the four corners of the top of the PCB board 3, and the mounting screw holes 15 and the mounting studs 16 are matched with each other. Mounting screw holes 19 are provided at the four corners of the top of the base plate 1, and clearance grooves 20 are provided at the left and right sides, front and back ends of the mounting shell 2, and the clearance grooves 20 and the mounting screw holes 19 are matched with each other. Align the mounting screw holes 15 on the PCB board 3 with the mounting studs 16, and then the personnel can use screws to install the PCB board 3 inside the mounting shell 2, align the mounting screw holes 19 on the base plate 1 with the mounting screw holes of the designated mounting position, and then the personnel can use screws to install the photovoltaic controller at the designated position through the mounting screw holes 19, wherein the provision of the clearance grooves 20 can make way for the mounting screw holes 19, making it easier for personnel to put the screws into the mounting screw holes 19.

[0025] When working, the personnel align the mounting screw holes 2 19 on the base plate 1 with the mounting screw holes of the designated mounting position, and then use screws to fix the photovoltaic controller. When wiring, the personnel only need to insert the XT60 terminal on the wire into the wiring port 8. The wiring port 8 has an anti-foolproof design, which can effectively avoid the problem of reverse connection of positive and negative poles or wrong connection of wires. When charging, charging port 1 6 and charging port 2 7 are provided on the right side of the mounting shell 2. Charging port 1 6 is a TYPE-C charging port, and charging port 2 7 is a USB-A charging port to meet the charging needs of different devices. During the use of the photovoltaic controller, the temperature component 5 can detect the temperature inside the mounting shell 2. When the temperature component 5 detects the temperature inside the mounting shell 2 When the temperature reaches the threshold, the PWM controller 4 can cut off the supply of charging current after receiving the signal from the temperature component 5. The display screen 17 will also display the high temperature abnormality interface at this time. Then the PWM controller 4 starts the cooling fan 13. The cooling fan 13 can bring the outside air in and out of the mounting shell 2 through the mounting hole 11. The air can then flow out through the cooling hole 1 9 and the cooling hole 2 10, thereby forming a good air duct, thereby accelerating the heat dissipation inside the mounting shell 2. When the temperature component 5 detects that the temperature drops to the recovery threshold, the PWM controller 4 can restore the operation of the photovoltaic controller. The PWM controller 4 and the temperature component 5 thus play a role in high temperature protection, thereby improving the life and safety of the equipment.

[0026] Through the above steps, by setting the PCB board 3, the PWM controller 4 and the temperature component 5, the temperature component 5 can detect the temperature. When it is detected that the temperature reaches the threshold, the PWM controller 4 receives the signal from the temperature component 5 and can automatically cut off the power supply, thereby preventing the device from overheating and improving the life and safety of the device. By setting the charging port 1 6 and the charging port 2 7, the charging needs of different devices can be met to solve the problem that most existing photovoltaic controllers use a simple thermal protection mechanism, lack intelligence in temperature control, and cannot accurately control the temperature, which may cause the device to be overheated and damaged or the efficiency to decrease, and the interface types are limited and cannot adapt to the charging needs of different devices.

Claims

1. A PWM photovoltaic controller with a multifunctional interface, comprising a base plate (1); characterized in that: A mounting shell (2) is fixedly provided on the top of the base plate (1), a PCB board (3) is provided inside the mounting shell (2), a PWM controller (4) is installed on the top of the PCB board (3), a temperature component (5) is installed on the right side of the top of the PCB board (3), a charging port 1 (6) and a charging port 2 (7) are provided on the right side of the mounting shell (2), the charging port 1 (6) is located behind the charging port 2 (7), a wiring port (8) is provided on the left side of the front of the mounting shell (2), and three wiring ports (8) are provided. The PWM controller (4) and the temperature component (5) are electrically connected.

2. The PWM photovoltaic controller with a multifunctional interface according to claim 1, characterized in that: The left and right ends of the rear side of the installation shell (2) are both provided with heat dissipation holes (9), and the right side of the front side of the installation shell (2) is provided with heat dissipation holes (10).

3. The PWM photovoltaic controller with a multifunctional interface according to claim 1, characterized in that: Mounting holes (11) are provided at both the front and rear ends of the left side of the mounting shell (2), filters (12) are installed on both the left and right sides of the mounting hole (11), a cooling fan (13) is installed between the left and right filters (12), and the cooling fan (13) is electrically connected to the PWM controller (4) and the temperature component (5).

4. The PWM photovoltaic controller with a multifunctional interface according to claim 1, characterized in that: Waterproof covers (14) are fixedly provided at both the left and right ends of the rear side of the installation shell (2) and the right side of the front side of the installation shell (2). The waterproof covers (14) are located outside the heat dissipation hole 1 (9) and the heat dissipation hole 2 (10).

5. The PWM photovoltaic controller with a multifunctional interface according to claim 1, characterized in that: A display screen (17) is provided on the left side of the top of the installation shell (2), and three control buttons (18) are provided on the right side of the top of the installation shell (2). The display screen (17) and the control buttons (18) are electrically connected to the PWM controller (4) and the temperature component (5).

6. The PWM photovoltaic controller with a multifunctional interface according to claim 1, characterized in that: Mounting studs (16) are fixedly provided at the four corners of the inner bottom of the mounting shell (2), and mounting screw holes (15) are opened at the four corners of the top of the PCB board (3), and the mounting screw holes (15) and the mounting studs (16) match each other.

7. The PWM photovoltaic controller with a multifunctional interface according to claim 1, characterized in that: The four corners of the top of the bottom plate (1) are all provided with two mounting screw holes (19), and the left and right sides and the front and rear ends of the mounting shell (2) are all provided with clearance grooves (20), and the clearance grooves (20) match the two mounting screw holes (19).

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