Solar power supply management device

Abstract

The utility model relates to the technical field of solar power supply, in particular to a solar power supply management device which comprises a control box body, and a solar cell panel is arranged on one side of the control box body. A power conversion device, an anti-islanding device, an overvoltage and undervoltage protector, an overvoltage and underfrequency protector, a control switch, a controller and a plurality of storage batteries are arranged in the control box body. The control box has the advantages that the power conversion device rectifies and inverts input direct current, charges the storage batteries and provides electric energy for an alternating current power grid, the overall power supply function is achieved, meanwhile, after an external power grid is powered off, the multiple storage batteries provide electric energy support for related electricity inside the control box body, and the control box is safe and reliable. And the control switch is disconnected with an external circuit, and meanwhile, electric energy is provided for the internal illuminating lamp to illuminate the control box body, so that a user can conveniently carry out maintenance operation, interference to overall control is avoided, and the problems in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar power supply, in particular to a solar power supply management device. Background Art

[0002] Solar power supply is a technology that uses solar energy to convert light energy into electrical energy, mainly through solar panels. Solar energy is a clean, renewable new energy source that plays a wide range of roles in people's lives and work, one of which is converting solar energy into electrical energy. Solar power generation is divided into solar thermal power generation and photovoltaic power generation. The solar power supply system consists of solar cell modules, solar controllers, and batteries (groups).

[0003] In a solar power supply circuit, a cabinet is generally used to install related control equipment, but its installation space is relatively closed. When a power outage occurs in the grid-connected circuit, there is no power supply inside the cabinet, resulting in control interruption, which in turn causes defects in control management. Based on this, a solar power supply management device is proposed to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a solar power supply management device, which effectively solves the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a solar power supply management device, including a control box, a solar panel is arranged on one side of the control box, and a power conversion device, an anti-islanding device, an over-voltage and under-voltage protector, an over-frequency and under-frequency protector, a control switch, a controller and multiple batteries are respectively arranged inside the control box, the power conversion device is electrically connected to the solar panel and the anti-islanding device through wires, the over-voltage and under-voltage protector and the over-frequency and under-frequency protector are located between the anti-islanding device and the control switch, and are electrically connected through wires, and the controller is electrically connected to the control switch through wires.

[0006] Preferably, any of the above schemes is that an air inlet duct is fixedly connected to the bottom end of one side of the control box, one end of the air inlet duct is placed tilted downward, and two fans are fixedly connected to one side of the control box close to the inner wall of the air inlet duct. This scheme facilitates the operation of the two fans to allow external air to enter the interior of the control box, and the air inlet duct is placed tilted downward to prevent rainwater on the outer wall from directly entering the interior of the air inlet duct, thereby avoiding damage to related electrical appliances inside the control box.

[0007] Preferably, any of the above schemes is that air outlet ducts are provided at the top of both sides of the control box, and one end of the two air outlet ducts are placed tilted downward. This scheme can bring air into the interior of the control box after the fan rotates, increase the pressure inside the control box, and facilitate the control of the discharge from the two air outlet ducts to the outside, thereby forming an air convection channel with the air inlet duct, which is convenient for heat dissipation of related electrical appliances inside the control box.

[0008] Preferably, any of the above schemes is that a fixing bracket is fixedly connected to the bottom surface of the inner wall of the control box, and the multiple batteries are located inside the fixing bracket. Three lighting lamps are fixedly connected to the top of the inner wall of the control box. The fixing bracket in this scheme is convenient for providing installation positions for multiple batteries and fixing multiple batteries at the same time. The lighting lamps are convenient for illuminating the interior of the control box, which is convenient for users to repair the electrical appliances inside the control box at a later time.

[0009] Preferably, any of the above schemes is that the power conversion device includes an inverter and a rectifier. By using this scheme, it is convenient to invert and rectify the current input by the solar circuit board. After inversion, alternating current is formed, which is convenient for stepping up and down, and convenient for grid-connected power supply with an external power grid. After rectification, it is convenient to charge multiple batteries so that the power of multiple batteries is maintained at the maximum state.

[0010] The utility model has the following advantages:

[0011] The solar power supply management device is provided with a control box, a power conversion device, an anti-islanding device, an over-voltage and under-voltage protector, an over-frequency and under-frequency protector, a control switch, a controller and a plurality of batteries, and then the power conversion device is used to rectify and invert the direct current input by the solar panel, charge the battery, and provide electric energy to the external alternating current power grid, thereby realizing the overall power supply function. At the same time, after a power outage occurs in the external power grid, the plurality of batteries are used to provide electric energy support for the relevant electrical inside the control box, and disconnect the control switch from the external circuit, and provide electric energy for the internal lighting lamp to illuminate the control box, so as to facilitate the user to perform maintenance operations and avoid interference with the overall control, thereby effectively solving the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0015] Figure 4 This is a system schematic diagram of the utility model.

[0016] In the figure: 1-control box, 2-solar panel, 3-air outlet pipe, 4-anti-islanding device, 5-controller, 6-air inlet pipe, 7-fixing frame, 8-battery, 9-control switch, 10-over-under frequency protector, 11-over-under voltage protector, 12-power conversion device, 13-fan, 14-lighting lamp. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0018] like Figures 1 to 4 As shown, a solar power supply management device includes a control box 1, a solar panel 2 is arranged on one side of the control box 1, a power conversion device 12, an anti-islanding device 4, an over-undervoltage protector 11, an over-underfrequency protector 10, a control switch 9, a controller 5 and a plurality of batteries 8 are arranged inside the control box 1, the power conversion device 12 is electrically connected to the solar panel 2 and the anti-islanding device 4 through wires, the over-undervoltage protector 11 and the over-underfrequency protector 10 are located between the anti-islanding device 4 and the control switch 9, and are electrically connected through wires, and the controller 5 is electrically connected to the control switch 9 through wires.

[0019] An air inlet duct 6 is fixedly connected to the bottom end of one side of the control box body 1, and one end of the air inlet duct 6 is placed tilted downward. Two fans 13 are fixedly connected to one side of the control box body 1 close to the inner wall of the air inlet duct 6. As an optional technical solution of the utility model, this makes it convenient to power on the two fans 13 to allow external air to enter the interior of the control box body 1, and the air inlet duct 6 is placed tilted downward to prevent rainwater on the outer wall from directly entering the interior of the air inlet duct 6, thereby avoiding damage to related electrical appliances inside the control box body 1.

[0020] Air outlet pipes 3 are provided at the top ends of both sides of the control box body 1, and one end of the two air outlet pipes 3 is placed tilted downward as an optional technical solution of the utility model. In this way, after the fan 13 rotates, air can be brought into the interior of the control box body 1, increasing the pressure inside the control box body 1, and facilitating the control of the discharge from the two air outlet pipes 3 to the outside, thereby forming an air convection channel with the air inlet pipe 6, which is convenient for heat dissipation of related electrical appliances inside the control box body 1.

[0021] A fixing bracket 7 is fixedly connected to the bottom surface of the inner wall of the control box 1, and multiple batteries 8 are located inside the fixing bracket 7. Three lighting lamps 14 are fixedly connected to the top of the inner wall of the control box 1. As an optional technical solution of the utility model, the fixing bracket 7 is convenient for providing an installation position for multiple batteries 8 and fixing multiple batteries 8 at the same time. The lighting lamps 14 are convenient for illuminating the interior of the control box 1, which is convenient for users to repair the electrical appliances inside the control box 1 later.

[0022] The power conversion device 12 includes an inverter and a rectifier, which is an optional technical solution of the utility model. This facilitates the inversion and rectification of the current input by the solar circuit board 2. After inversion, alternating current is formed, which is convenient for stepping up and down, and convenient for grid-connected power supply with an external power grid. After rectification, it is convenient to charge multiple batteries 8 so that the power of multiple batteries 8 is maintained at the maximum state.

[0023] To sum up, when the user uses it, by setting the control box 1, the power conversion device 12, the anti-islanding device 4, the over-voltage and under-voltage protector 11, the over-frequency and under-frequency protector 10, the control switch 9, the controller 5 and multiple batteries 8, the power conversion device 12 is convenient for rectifying and inverting the DC power input by the solar panel 2, charging the battery 8, and providing power to the external AC power grid, thereby realizing the overall power supply function. At the same time, after the external power grid is powered off, the multiple batteries 8 are convenient for providing power support for the relevant electrical inside the control box 1, and the control switch 9 is disconnected from the external circuit, and at the same time, power is provided to the internal lighting lamp 14 to illuminate the control box 1, so as to facilitate the user to perform maintenance operations and avoid interference with the overall control, thereby effectively solving the problems existing in the prior art.

[0024] Although 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

1. A solar power supply management device, characterized in that: The invention comprises a control box (1), a solar cell panel (2) is arranged on one side of the control box (1), a power conversion device (12), an anti-islanding device (4), an over-undervoltage protector (11), an over-underfrequency protector (10), a control switch (9), a controller (5) and a plurality of storage batteries (8) are arranged inside the control box (1), the power conversion device (12) is electrically connected to the solar cell panel (2) and the anti-islanding device (4) through wires, the over-undervoltage protector (11) and the over-underfrequency protector (10) are located between the anti-islanding device (4) and the control switch (9), and are electrically connected through wires, and the controller (5) is electrically connected to the control switch (9) through wires.

2. A solar power supply management device according to claim 1, characterized in that: An air inlet pipe (6) is fixedly connected to the bottom end of one side of the control box (1), one end of the air inlet pipe (6) is placed tilted downward, and two fans (13) are fixedly connected to one side of the control box (1) close to the inner wall of the air inlet pipe (6).

3. A solar power supply management device according to claim 2, characterized in that: Air outlet pipes (3) are provided at the top ends of both sides of the control box body (1), and one end of the two air outlet pipes (3) is placed tilted downward.

4. A solar power supply management device according to claim 3, characterized in that: A fixing frame (7) is fixedly connected to the bottom surface of the inner wall of the control box body (1), a plurality of storage batteries (8) are located inside the fixing frame (7), and three lighting lamps (14) are fixedly connected to the top of the inner wall of the control box body (1).

5. A solar power supply management device according to claim 4, characterized in that: The power conversion device (12) comprises an inverter and a rectifier.

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