Photovoltaic energy storage integrated equipment

Abstract

The utility model discloses photovoltaic energy storage integrated equipment, and relates to the technical field of photovoltaic power generation, the photovoltaic energy storage integrated equipment comprises a box body and spring expansion brackets symmetrically arranged on the box body, the other ends of the spring expansion brackets are provided with photovoltaic panels, an internal cavity of the box body is divided into an upper layer and a lower layer by an isolation plate, the upper layer is an energy storage layer, and the lower layer is a power supply layer. An automatic switching device is arranged on the inner wall of the energy storage layer, the self-generation and self-use rate of the photovoltaic system is improved, self-sufficiency of energy is achieved, the electric charge expenditure is effectively reduced, conversion between the energy storage battery and the standby energy storage battery is carried out through the automatic switching device, stable electric power supply is provided, and the energy safety is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic power generation technical field especially is related to a photovoltaic energy storage integrated equipment. BACKGROUND

[0002] In prior art, for example, CN218771996U discloses a kind of photovoltaic energy storage integrated equipment, including photovoltaic power generation panel, energy storage conversion controller, energy storage battery;The energy storage conversion controller and the energy storage battery are fixedly installed in installation box, the photovoltaic power generation panel is installed on the installation box by fixed frame, and the photovoltaic power generation panel and the installation box have heat dissipation channel between;

[0003] But photovoltaic power generation panel is arranged on installation box limits the capture range of photovoltaic power generation panel to light, can cause energy supply unstable, while installation box faces the sun direct radiation long-term can cause the short-circuit current of energy storage battery to increase, and open-circuit current reduces, causes the situation of unstable overall voltage.

[0004] Therefore, a kind of photovoltaic energy storage integrated equipment is provided to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of photovoltaic energy storage integrated equipment, improves the self-generation self-use rate of photovoltaic system, realizes the self-sufficiency of energy, and effectively reduces electricity expense, simultaneously carries out the conversion of energy storage battery and backup energy storage battery, to provide stable power supply, enhance energy security.

[0006] To achieve the above object, the utility model provides a kind of photovoltaic energy storage integrated equipment, including box and spring telescopic frame being symmetrically arranged on the box, the other end of the spring telescopic frame is provided with photovoltaic board, the inside chamber of the box is divided into two layers by isolating plate, upper layer is set as energy storage layer, lower layer is set as power supply layer, automatic switching device is provided on the inner wall of the energy storage layer.

[0007] Preferably, the energy storage layer includes energy storage converter, energy storage battery and backup energy storage battery, the photovoltaic board is connected in series with the energy storage converter by cable, the energy storage battery, the backup energy storage battery is connected in parallel with the energy storage converter by cable respectively.

[0008] Preferably, the automatic switching device includes switch assembly and controller, the energy storage battery and the backup energy storage battery are connected in parallel with the switch assembly by cable, and the controller is connected in series with the energy storage battery by wire.

[0009] Preferably, the power supply layer comprises an inverter, a load and a generator, the photovoltaic panel is connected in series with the inverter through a cable, the inverter and the load are connected in parallel through a cable, the inverter and the generator are connected in parallel through a cable, and the load and the generator are connected in parallel through a cable.

[0010] Preferably, the energy storage battery and the backup energy storage battery are connected in parallel with the inverter through a cable respectively.

[0011] Preferably, the spring telescopic frame is movably connected with the photovoltaic panel through a rolling bearing.

[0012] Preferably, the energy storage battery and the backup energy storage battery are both lithium ion batteries.

[0013] Therefore, the photovoltaic energy storage integrated equipment has the following beneficial effects:

[0014] (1) High self-generation and self-use rate: by preferentially supplying photovoltaic power to the load, the excess power can be stored in the battery, and when the photovoltaic power generation is insufficient or at night, the battery discharges power for the load, thereby improving the self-generation and self-use rate of the photovoltaic system and realizing energy self-sufficiency;

[0015] (2) High safety: the backup energy storage battery is arranged in the energy storage layer, which ensures the sustainable use of the energy storage equipment and improves the energy reserve, ensuring that production activities are not affected;

[0016] (3) High light trapping efficiency: the height and angle of the photovoltaic panel for trapping light can be adjusted, thereby maximizing the conversion of light energy into electrical energy and improving the power generation efficiency.

[0017] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure diagram of the photovoltaic energy storage integrated equipment.

[0019] 1, box; 2, spring telescopic frame; 3, photovoltaic panel; 4, isolation plate; 5, energy storage layer; 501, energy storage converter; 502, energy storage battery; 503, backup energy storage battery; 6, power supply layer; 601, inverter; 602, load; 603, generator; 7, automatic switching device; 701, switch assembly; 702, controller; 8, rolling bearing. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments.

[0021] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are merely used to distinguish different constituent parts. The terms "comprise", "include" and similar terms mean that the elements or objects before these terms encompass the elements or objects listed after these terms and equivalents thereof, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms do not mean only physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are merely used to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0022] As shown in the Figure 1 The present application provides a photovoltaic energy storage integrated device, which comprises a box body 1 and a spring telescopic frame 2 symmetrically arranged on the box body, the other end of the spring telescopic frame 2 is provided with a photovoltaic panel 3, and the spring telescopic frame 2 is movably connected with the photovoltaic panel 3 through a rolling bearing 8.

[0023] The inner cavity of the box body is divided into two layers by an isolation plate 4, the upper layer is set as an energy storage layer 5, and the lower layer is set as a power supply layer 6, and an automatic switching device 7 is arranged on the inner wall of the energy storage layer 5.

[0024] The energy storage layer 5 comprises an energy storage converter 501, an energy storage battery 502 and a backup energy storage battery 503, the energy storage battery 502 and the backup energy storage battery 503 are both lithium ion batteries, the photovoltaic panel 3 is connected in series with the energy storage converter 501 through a cable, and the energy storage battery 502 and the backup energy storage battery 503 are connected in parallel with the energy storage converter 501 through a cable respectively.

[0025] The power supply layer 6 comprises an inverter 601, a load 602 and a generator 603, the photovoltaic panel 3 is connected in series with the inverter 601 through a cable, the inverter 601 and the load 602, the inverter 601 and the generator 603, and the load 602 and the generator 603 are all connected in parallel through a cable, and the energy storage battery 502 and the backup energy storage battery 503 are connected in parallel with the inverter 601 through a cable respectively.

[0026] The automatic switching device 7 comprises a switch assembly 701 and a controller 702, the energy storage battery 502 and the backup energy storage battery 503 are connected in parallel with the switch assembly 701 through a cable, and the controller 702 is connected in series with the energy storage battery 502 through a wire.

[0027] Embodiment

[0028] The height of the photovoltaic panel 3 for capturing light is adjusted by the spring telescopic frame 2, and the angle of the photovoltaic panel 3 for capturing light is adjusted by the rolling bearing 8, so that the photovoltaic panel 3 can maximize the acceptance of light intensity, the photovoltaic panel 3 directly converts light energy into electric energy by using the photovoltaic effect of the semiconductor interface, the inverter 601 converts the direct current into alternating current for the load 602, the load 602 balances the supply and demand relationship of electric energy in the system by consuming electric energy, prevents electric energy surplus or electric energy shortage, and meanwhile, the generator 603 balances the load of the system by adjusting the output power, and ensures the stability of voltage and frequency;

[0029] When the solar power is greater than the consumption power, the energy storage converter 501 converts the direct current into alternating current, and the remaining electric energy is stored into the energy storage battery 502 for subsequent use, and meanwhile, the controller 702 monitors the current flow of the energy storage battery 502, when the energy storage battery 502 is insufficient or fails, the switch assembly 701 adjusts the current flow direction, so that the remaining electric energy is stored into the standby energy storage battery 503.

[0030] When the photovoltaic panel 3 generates insufficient power or in the case of no light at night, the energy storage battery 502 or the standby energy storage battery 503 releases the stored electric energy through the inverter 601 to meet the power demand.

[0031] Therefore, the photovoltaic energy storage integrated equipment has the advantages that photovoltaic power is preferentially supplied to the load, the excess power can be stored in the battery, when the photovoltaic power generation is insufficient or at night, the battery discharges to supply power to the load, so that the self-generation and self-use rate of the photovoltaic system is improved, and energy self-sufficiency is realized; the standby energy storage battery is arranged in the energy storage layer, so that the sustainable use of the energy storage equipment is ensured, the energy reserve is improved, and the production activities are not affected; the height and the angle of the photovoltaic panel for capturing light can be adjusted, so that the light energy is maximally converted into electric energy, and the power generation efficiency is improved.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solutions of the utility model can still be modified or replaced, and these modifications or replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A photovoltaic energy storage integrated device, characterized in that: The utility model relates to a photovoltaic power generation device, including box and symmetrical setting spring telescopic frame on the box, the other end of spring telescopic frame is provided with photovoltaic panel, and the inside chamber of box is divided into two layers of upper and lower by isolation board, and the upper layer is set to energy storage layer, and the lower layer is set to power supply layer, and the inner wall of energy storage layer is provided with automatic switching device.

2. The photovoltaic energy storage integrated device according to claim 1, characterized in that: The energy storage layer includes an energy storage converter, an energy storage battery, and a backup energy storage battery, the photovoltaic panel is connected in series with the energy storage converter through a cable, and the energy storage battery and the backup energy storage battery are connected in parallel with the energy storage converter through cables respectively.

3. The photovoltaic energy storage integrated device of claim 2, wherein: The automatic switching device includes a switch assembly and a controller, the energy storage battery and the backup energy storage battery are connected in parallel with the switch assembly through cables respectively, and the controller is connected in series with the energy storage battery through a wire.

4. The photovoltaic energy storage integrated device of claim 2, wherein: The power supply layer includes an inverter, a load, and a generator, the photovoltaic panel is connected in series with the inverter through a cable, the inverter and the load, the inverter and the generator, and the load and the generator are connected in parallel through cables respectively.

5. The photovoltaic energy storage integrated device of claim 4, wherein: The energy storage battery and the backup energy storage battery are connected in parallel with the inverter through cables respectively.

6. The photovoltaic energy storage integrated device of claim 1, wherein: The spring telescopic frame is movably connected with the photovoltaic panel through a rolling bearing.

7. The photovoltaic energy storage integrated device of claim 2, wherein: The energy storage battery and the backup energy storage battery are both lithium ion batteries.

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