Optical storage monitoring power supply system

Abstract

The utility model discloses a light storage monitoring power supply system which is provided with a battery module used for storing energy, the battery module is a lithium battery module, the input end of the battery module is connected with the output end of a photovoltaic charging controller through a wire, the output end of the battery module is connected with the input end of a DC / DC (Direct Current / Direct Current) through a wire, and the output end of the DC / DC is connected with a power supply terminal. The power supply terminal is used for being connected with electric equipment, and the control end of the DC / DC is connected with a switch element. The power supply system adopts the lithium ion battery, and is green, low-carbon, environment-friendly, high in battery energy density, long in service life and convenient to install and overhaul.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply monitoring. Background Art

[0002] Due to the need for energy conservation and emission reduction, renewable energy is gradually becoming the main source of energy and is increasingly used in all aspects of production and life. With the large-scale construction of smart cities and Internet of Vehicles, the demand for monitoring power supplies using photovoltaic power generation and battery energy storage is increasing. In order to reduce the amount of engineering in project implementation, especially the excavation of urban roads and the laying of power cables, and to meet the continuous working requirements of monitoring equipment and signal equipment, it is necessary to develop a photovoltaic storage monitoring power supply system.

[0003] For example, the publication number is CN 112816883B, and the patent name is "A returned lead-acid battery management system for building an energy storage power station", which discloses a returned lead-acid battery recycling technology, including a returned lead-acid battery data collector, the returned lead-acid battery data collector is electrically connected to the positive and negative electrode columns of the returned lead-acid battery, the returned lead-acid battery data collector is electrically connected to the wireless signal transmitter, the signal emitted by the wireless signal transmitter is transmitted to the processor through the wireless signal receiver, the processor can analyze the information collected by the returned lead-acid battery data collector, and the processor can transmit the information analysis results of the corresponding returned lead-acid battery obtained by the returned lead-acid battery data collector to the remote terminal in real time.

[0004] The existing photovoltaic storage monitoring power supply uses traditional lead-acid batteries, which are relatively bulky and cannot be directly hung inside the monitoring system. They need to be buried underground and cables need to be laid and passed through pipes to connect to the photovoltaic panels. In addition, lead-acid batteries cause great pollution to the environment, have few cycles, short service life, are inconvenient to maintain, and are difficult to replace when damaged. They need to be dug out of the soil to be replaced. On the other hand, the various components that make up the power supply are relatively scattered, and it is difficult to troubleshoot when a fault occurs.

[0005] Therefore, it is necessary to develop a photo-storage monitoring power supply system, which uses lithium batteries with high energy density, light weight, many cycles and long life. Summary of the invention

[0006] The technical problem to be solved by the utility model is to realize a reliable, portable and long-life power supply system.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a photovoltaic storage monitoring power supply system, the system is provided with a battery module for energy storage, the battery module is a lithium battery module, the input end of the battery module is connected to the output end of the photovoltaic charging controller via a wire, the output end of the battery module is connected to the input end of the DC / DC via a wire, the output end of the DC / DC is connected to the power supply terminal, the power supply terminal is used to connect electrical equipment, and the control end of the DC / DC is connected to a switching element.

[0008] The battery module is connected to a protection board for preventing overcharging or overdischarging and balancing electric energy.

[0009] The photovoltaic charging controller is connected to the photovoltaic power generation panel via a wire.

[0010] The battery module is composed of four 30Ah lithium iron phosphate batteries connected in series.

[0011] The battery module is made of retired batteries from electric vehicles.

[0012] The output end of the DC / DC is connected to the power supply terminal via a fuse.

[0013] The DC / DC converts the 12V of the battery module into a 24V output voltage.

[0014] The photovoltaic charging controller, battery module, DC / DC and protection board are all fixed in an insulating shell. The shell is provided with an input jack, which is connected to the input end of the photovoltaic charging controller and is used to connect to the photovoltaic power generation panel. The switch, input jack and power supply terminal are arranged on the surface of the shell.

[0015] The DC / DC is provided with a 5V output, and the 5V output is connected to and provides power for a light storage charging indicator light, and the indicator light is fixed on the surface of the shell.

[0016] The bottom of the shell is provided with rollers, the top is provided with a handle, and the side panels on the four sides of the shell are fixed to the frame on the side by screws.

[0017] The power supply system of the utility model adopts lithium-ion batteries, which are green, low-carbon and environmentally friendly, have high battery energy density, long service life, and are easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents of each figure in the utility model specification:

[0019] Figure 1 This is the principle block diagram of the photovoltaic storage monitoring power supply system. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation methods of the present invention, such as the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, the manufacturing process and the operation and use methods, etc., through the description of the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0021] The battery module used in the photovoltaic storage monitoring power supply system is a lithium battery module, preferably composed of 4 30Ah lithium iron phosphate batteries connected in series. In particular, retired batteries from electric vehicles can be used to make battery modules, so that retired batteries can be used again. The main function of the battery module is to store electricity generated by photovoltaic panels. In rainy weather and at night, the battery module discharges to provide a continuous working power carrier for the equipment. The input end of the battery module is connected to the output end of the photovoltaic charge controller via a wire, and the photovoltaic charge controller is connected to the photovoltaic power generation panel via a wire. The photovoltaic charge controller is designed to always keep the battery module in a full state to prevent the battery module from overcharging or over-discharging.

[0022] The output end of the battery module is connected to the input end of the DC / DC through a wire. The DC / DC module converts the 12V of the battery module into a 24V voltage to provide a stable power supply for the intelligent monitoring traffic signal system. The 5V provides power for the solar storage charging indicator light. The indicator light is fixed on the surface of the shell to facilitate users to understand the current working condition of the solar storage monitoring power supply system.

[0023] The output end of the DC / DC is connected to the power supply terminal, which is used to connect electrical equipment. The control end of the DC / DC is connected to a switching element. The switch controls the voltage output of the optical storage monitoring power supply for easy maintenance. The power supply terminal can be multiple interfaces, allowing users to choose to connect to one device for power supply, or to connect to multiple devices for power supply at the same time. A fuse is connected in series on the wire between the output end of the DC / DC and the power supply terminal. The function of the fuse is to prevent power failure from causing a short circuit and burning out the intelligent monitoring system.

[0024] The battery module is connected to the protection board. The BMS protection board is used to prevent the battery module from overcharging or over-discharging, thereby causing safety accidents. On the other hand, it plays a balancing role to increase the service life of the battery module.

[0025] The above-mentioned photovoltaic charging controller, battery module, DC / DC and protection board are all fixed in an insulating shell. The size of the shell is mainly determined by the size of the battery module. An input jack is provided on the shell, and the input jack is connected to the input end of the photovoltaic charging controller. The input jack is used to connect to the photovoltaic power generation panel. The switch, input jack and power supply terminal are arranged on the shell surface for convenient operation and use. In addition, rollers are provided at the bottom of the shell, generally four of which are arranged at the four corners of the bottom surface, so that it is convenient to push it to any place where it is needed. At the same time, the top handle of the shell can be used as a starting point for pushing, and can also be used as a fixing point for lifting the shell (the entire system). Only the bottom and top panels of the shell are fixed and cannot be removed. The shell is a frame structure as a whole. The side panels on the four sides are fixed to the frame by screws. It is a detachable structure, which is convenient for opening any side for maintenance when a system failure occurs.

[0026] Based on the above structure, by adopting lithium-ion batteries, which are green, low-carbon and environmentally friendly, the battery has a large energy density and a long service life. In terms of the overall system structure, it is easy to install, easy to maintain, and safe and reliable to use.

[0027] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A photovoltaic power supply monitoring system, characterized in that: The system is provided with a battery module for energy storage, wherein the battery module is a lithium battery module, wherein the input end of the battery module is connected to the output end of the photovoltaic charging controller via a wire, the output end of the battery module is connected to the input end of the DC / DC via a wire, the output end of the DC / DC is connected to a power supply terminal, the power supply terminal is used to connect to electrical equipment, and the control end of the DC / DC is connected to a switch element.

2. The photovoltaic power supply monitoring system according to claim 1 is characterized in that: The battery module is connected to a protection board for preventing overcharging or overdischarging and balancing electric energy.

3. The photovoltaic power supply monitoring system according to claim 2 is characterized in that: The photovoltaic charging controller is connected to the photovoltaic power generation panel via a wire.

4. The photovoltaic power monitoring system according to claim 3 is characterized in that: The battery module is composed of four 30Ah lithium iron phosphate batteries connected in series.

5. The photovoltaic power monitoring system according to claim 4 is characterized in that: The battery module is made of retired batteries from electric vehicles.

6. The photovoltaic power monitoring system according to claim 5, characterized in that: The output end of the DC / DC is connected to the power supply terminal via a fuse.

7. The photovoltaic power supply monitoring system according to claim 6, characterized in that: The DC / DC converts the 12V of the battery module into a 24V output voltage.

8. The photovoltaic power supply monitoring system according to any one of claims 2 to 7, characterized in that: The photovoltaic charging controller, battery module, DC / DC and protection board are all fixed in an insulating shell. The shell is provided with an input jack, which is connected to the input end of the photovoltaic charging controller and is used to connect to the photovoltaic power generation panel. The switch, input jack and power supply terminal are arranged on the surface of the shell.

9. The photovoltaic power supply monitoring system according to claim 8, characterized in that: The DC / DC is provided with a 5V output, and the 5V output is connected to and provides power for a light storage charging indicator light, and the indicator light is fixed on the surface of the shell.

10. The photovoltaic power monitoring system according to claim 9, characterized in that: The bottom of the shell is provided with rollers, the top is provided with a handle, and the side panels on the four sides of the shell are fixed to the frame on the side by screws.

Images