CN205081550U - Domestic photovoltaic storage system - Google Patents

Abstract

The utility model discloses a household photovoltaic energy storage system, comprising: a photovoltaic module, the photovoltaic module has a positive discharge terminal and a negative discharge terminal; an energy storage battery, the negative energy storage terminal is connected to the negative discharge terminal, and The positive energy storage terminal of the battery is connected to the positive discharge terminal through a switch controller. When the energy storage battery is fully charged, the switch controller is disconnected to stop charging; a potential output terminal, the two input terminals are respectively connected to the positive energy storage terminal and the negative energy storage terminal; a multi-position output terminal, the multiple output terminals are respectively connected to a plurality of the potential output terminals; And a display device, which is connected to the positive energy storage terminal and used to display the electric quantity, voltage and power of the energy storage battery. The system rationally combines photovoltaic modules and storage batteries so that both can play their own roles.

Description

A household photovoltaic energy storage system

technical field

The utility model relates to the field of solar energy utilization, in particular to a household photovoltaic energy storage system.

Background technique

The solar photovoltaic energy storage system generates electricity through solar photovoltaic. Photovoltaic power generation requires silicon or other special materials to generate electricity through a photovoltaic device installed at the bottom of the solar film. The solar power generation system generates DC power, which can directly supply power for small household appliances that require DC power (such as mobile phones, laptop computers, wireless routers, security testing equipment, LED lights, etc.).

Electric bicycle batteries, car batteries and other batteries are mostly eliminated when they cannot drive electric bicycles or automotive equipment, but they still have a certain power storage function when they are eliminated. After recycling and safety testing and inspection, their storage and discharge capabilities are still sufficient for Household small electrical appliances powered by DC power supply, thus solving the problem of recycling waste storage batteries.

However, the existing photovoltaic modules and storage batteries cannot be well combined, and their utilization efficiency is low, and the functions of the two cannot be fully utilized.

The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and should not be considered as an acknowledgment or in any form to imply that the information constitutes the prior art already known to those skilled in the art.

Utility model content

The purpose of the utility model is to provide a household photovoltaic energy storage system, which rationally combines photovoltaic components and storage batteries so that the two can play their own roles.

In order to achieve the above purpose, the utility model provides a household photovoltaic energy storage system, including: a photovoltaic module, the photovoltaic module has a positive discharge terminal and a negative discharge terminal; an energy storage battery, the negative energy storage terminal and the negative discharge terminal connected, the positive energy storage terminal of the energy storage battery is connected to the positive discharge terminal through a switch controller, and when the energy storage battery is fully charged, the switch controller is disconnected to stop charging; an input terminal and a plurality of potential output terminals, the two input terminals are respectively connected to the positive energy storage terminal and the negative energy storage terminal; a multi-position output terminal, the multi-position output terminals are respectively connected to a plurality of the said negative energy storage terminals; The potential output terminal is connected; and a display device is connected to the positive energy storage terminal for displaying the electric quantity, voltage and power of the energy storage battery.

Preferably, in the above technical solution, the multi-bit output terminal is a plurality of voltage and current output terminals.

Preferably, in the above technical solution, the switch controller includes a charge controller and an overcharge linkage switch, and the positive discharge terminal, the overcharge linkage switch, the charge controller and the positive energy storage terminal are sequentially connected .

Preferably, in the above technical solution, the display device includes: a current sensor, a voltage sensor, a power sensor, a controller and a display, and the current sensor, the voltage sensor and the power sensor are connected to the positive energy storage terminal To collect the current, voltage and power of the energy storage battery, the controller is respectively connected to the current sensor, the voltage sensor and the power sensor to obtain the current, the voltage and the power, so The display is connected with the controller to display the current, the voltage and the electric quantity.

Preferably, in the above technical solution, the multi-bit output terminals include: 3V terminals, 5V terminals, 9V terminals and 18V terminals.

Preferably, in the above technical solution, the photovoltaic module includes a solar photovoltaic film and a photovoltaic chip device installed at the bottom of the solar film.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model uses a switch controller to control whether the battery is fully charged to avoid overcharging the battery and causing excessive consumption of the battery. At the same time, a display device is added to clearly understand the use of the battery.

2. The utility model rationally uses solar power to achieve the purpose of energy saving, and at the same time solves the limitations of household solar photovoltaic utilization, the recycling of waste energy storage batteries, and the continuous and stable power supply for small DC household appliances, so as to make up for the existing problems. Insufficient household photovoltaic power generation energy storage power supply in technology.

3. The utility model can realize distributed installation through the combination of photovoltaic modules and residential sunshade facilities, save the space occupied by photovoltaic modules, and solve the limitations of household solar photovoltaic utilization.

Description of drawings

Fig. 1 is a schematic diagram of a household photovoltaic energy storage system according to the present invention.

Explanation of main reference signs:

1-photovoltaic module, 2-switch controller, 21-charge controller, 22-overcharge linkage switch, 3-energy storage battery, 4-display device, 41-current sensor, 42-voltage sensor, 43-electricity sensor, 44-controller, 45-monitor, 5-transformer, 6-multiple output terminals.

detailed description

The specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

Fig. 1 shows a schematic structural diagram of a household photovoltaic energy storage system according to a preferred embodiment of the present invention. As shown in Figure 1, the system includes: a photovoltaic module 1, an energy storage battery 3, a switch controller 2, a transformer device 5, a multi-digit output terminal 6, and a display device 4; 1. Car battery, used after safety inspection and inspection; photovoltaic module 1 includes solar photovoltaic film and a photovoltaic device installed at the bottom of the solar film, the photovoltaic device has a positive discharge terminal and a negative discharge terminal, and the photovoltaic module 1 and Venetian curtains, window glass, balconies and other sunshades are combined for distributed installation; the negative energy storage end of the energy storage battery 3 is connected to the negative electrode discharge end, and the positive energy storage end of the energy storage battery 3 is connected to the positive electrode discharge end through the switch controller 2 connected, when the energy storage battery 3 is fully charged, the switch controller 2 is disconnected to stop charging, more specifically, the switch controller 2 includes a charge controller 21 and an overcharge linkage switch 22, a positive discharge terminal, an overcharge linkage switch 22. The charge controller 21 and the positive energy storage terminal are connected sequentially. The charge controller 21 automatically controls the overcharge linkage switch 22 according to the operating conditions of the system to realize the overcharge protection function of the energy storage battery 3. When the energy storage battery 3 is fully charged , the charge controller 21 controls the overcharge linkage switch 22 to disconnect, and no longer charges the energy storage battery 3; when the energy storage battery 3 is insufficient, the charge controller 21 controls the overcharge linkage switch 22 to connect to charge the energy storage battery 3 charge. The transformer device 5 has two input terminals and multiple potential output terminals, and the two input terminals are respectively connected to the positive energy storage terminal and the negative energy storage terminal; the multi-position output terminals 6 are respectively connected to multiple potential output terminals, and the transformer device 5 Convert the high-voltage collected by the energy storage battery 3 into low-voltage and low-current through multiple output terminals 6 to match the power supply requirements of small household DC appliances, such as mobile phones, laptop computers, wireless routers, security testing equipment, LED lights, etc. to provide power , so as to bring energy saving and environmental protection benefits. Among them, the multi-bit output terminal 6 is a variety of voltage and current output terminals, which can be composed of 3V terminals, 5V terminals, 9V terminals and 18V terminals; the display device 4 is connected to the positive energy storage terminal for displaying energy storage The electric quantity, voltage and power of the battery 3.

Continuing to refer to FIG. 1 , the display device 4 includes: a current sensor 41, a voltage sensor 42, a power sensor 43, a controller 44 and a display 45, and the current sensor 41, the voltage sensor 42 and the power sensor 43 are connected to the positive energy storage terminal to collect energy storage The current, voltage and power of the battery 3, the controller 44 is connected with the current sensor 41, the voltage sensor 42 and the power sensor 43 respectively to obtain the current, voltage and power and convert it into a displayable signal, and the display 45 is connected with the controller 44 to display Current, voltage, and power usage.

To sum up, the utility model uses the switch controller to control whether the battery is fully charged to avoid overcharging the battery and causing excessive consumption of the battery. At the same time, a display device is added to make it possible to clearly understand the use of the battery. It solves the limitations of household solar photovoltaic utilization, the recycling of waste energy storage batteries, and the continuous and stable power supply for small DC household appliances, so as to make up for the shortage of household photovoltaic power generation energy storage power supply in the prior art.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various exemplary embodiments of the present invention and various Different options and changes. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. a family expenses photovoltaic energy storage system, is characterized in that, comprising:

Photovoltaic module, this photovoltaic module has positive discharge end and negative discharge end;

Energy storage battery, its negative pole accumulation of energy end is connected with described negative discharge end, and the positive pole accumulation of energy end of this energy storage battery is connected with described positive discharge end by on-off controller, and when described energy storage battery is full of electricity, described on-off controller disconnects stopping charging;

Potential device, two input and multiple current potential output, two described inputs are connected with described positive pole accumulation of energy end and described negative pole accumulation of energy end respectively;

Multidigit output, output described in multidigit is connected with multiple described current potential output respectively; And

Display unit, it is connected on described positive pole accumulation of energy end, for showing the electricity of described energy storage battery, voltage and power.

2. family expenses photovoltaic energy storage system according to claim 1, is characterized in that, described multidigit output is that multiple electric current and voltage exports termination.

3. family expenses photovoltaic energy storage system according to claim 1, it is characterized in that, described on-off controller comprises charge controller and overcharge linked switch, described positive discharge end, described in overcharge linked switch, described charge controller and described positive pole accumulation of energy end and connect successively.

4. family expenses photovoltaic energy storage system according to claim 1, it is characterized in that, described display unit comprises: current sensor, voltage sensor, electrical quantity sensor, controller and display, described current sensor, described voltage sensor and described electrical quantity sensor are connected to described positive pole accumulation of energy end to gather the electric current of described energy storage battery, voltage and electricity, described controller respectively with described current sensor, described voltage sensor is connected to obtain described electric current with described electrical quantity sensor, described voltage and described electricity, described display is connected to show described electric current with described controller, described voltage and described electricity.

5. family expenses photovoltaic energy storage system according to claim 1, it is characterized in that, described in multidigit, output comprises: 3V end, 5V end, 9V end and 18V end.

6. family expenses photovoltaic energy storage system according to claim 1, is characterized in that, described photovoltaic module comprises photovoltaic film and is installed on the light generating sheet devices bottom described solar energy film.