Photovoltaic inversion energy storage equipment

Abstract

The invention discloses photovoltaic inversion energy storage equipment, which comprises a battery assembly, and further comprises a high-voltage box which is electrically connected with the battery assembly, is provided with a power supply connection interface and is used for connecting external power supply equipment; the inversion box is electrically connected with the battery assembly, the inversion box comprises an inversion module and is used for converting photovoltaic power, the inversion box is provided with a PV connection port, an AC connection port and an output connection port, the PV connection port is used for being connected with photovoltaic power generation equipment, the AC connection port is used for being connected with an AC power supply system, and the output connection port is used for being connected with a household power supply system; the battery assembly, the high-voltage box and the inverter box are sequentially stacked and detachably fixed. The photovoltaic inversion energy storage equipment provided by the invention can realize multiple functions.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic equipment, and more specifically, relates to a photovoltaic inverter energy storage device. Background Art

[0002] Existing photovoltaic inverter energy storage devices usually have a fixed structure, and their provided functions are also relatively single, unable to provide corresponding functions according to changes in usage scenarios.

[0003] Existing photovoltaic inverter energy storage devices mainly focus on industrial applications, lacking photovoltaic inverter energy storage devices that can meet the needs of field or household scenarios. Summary of the Invention

[0004] To solve the above problems, the present invention provides a photovoltaic inverter energy storage device with multiple functions to meet different usage requirements.

[0005] The present invention adopts the following technical solutions: A photovoltaic inverter energy storage device includes a battery assembly, and further includes: A high-voltage box, electrically connected to the battery assembly, provided with a power connection interface for connecting an external power supply device; An inverter box, electrically connected to the battery assembly. The inverter box includes an inverter module for converting photovoltaic power. The inverter box is provided with a PV connection port, an AC connection port, and an output connection port. The PV connection port is used for connecting a photovoltaic power generation device, the AC connection port is used for connecting an AC power system, and the output connection port is used for connecting a household power supply system; The battery assembly, the high-voltage box, and the inverter box are sequentially stacked and detachably fixed.

[0006] Further, the photovoltaic inverter energy storage device further includes: A control box, selectively electrically connected to the high-voltage box or the inverter box. The control box is provided with a variable wiring area, and the variable wiring area includes the following ports: A power output port for connecting a power output device; A communication port for connecting a control device to achieve control of the energy storage device.

[0007] Further, the variable wiring area is installed in the control box in a hidden or detachable manner.

[0008] Further, when the control box is connected to the high-voltage box, the photovoltaic inverter energy storage device is used to provide energy.

[0009] Further, the control box further includes: A display component for displaying the operating parameters of the energy storage device.

[0010] Further, the battery assembly includes a battery cell and a control board. Battery connectors are provided at both ends of the battery assembly. Each battery connector includes a battery positive connection section connected to the positive pole of the battery circuit, a battery negative connection section connected to the negative pole of the battery circuit, a control board positive connection section connected to the positive pole of the control board circuit, and a control board negative connection section connected to the negative pole of the control board circuit; The photovoltaic inverter energy storage device includes a plurality of battery assemblies which are stacked. The battery connectors of adjacent two battery assemblies are connected so that the positive poles of the battery circuits, the negative poles of the battery circuits, the positive poles of the control board circuits, and the negative poles of the control board circuits of the plurality of battery assemblies are respectively connected; The photovoltaic inverter energy storage device further includes a base for carrying a plurality of battery assemblies. The base is provided with base connectors which respectively connect and communicate the battery positive connection section and the battery negative connection section and connect and communicate the control board positive connection section and the control board negative connection section.

[0011] Further, connection platforms are provided at the tops of the outer shells of the high-voltage box and the inverter box of the battery assembly, and connection grooves are provided at the bottoms. The plurality of boxes are stacked so that the connection platforms of adjacent boxes are embedded in the connection grooves and fixed by fixing members.

[0012] Further, the high-voltage box further includes: A communication port for connecting to a control device. When the photovoltaic inverter energy storage device is connected to the power system, the communication port is used to connect to the control module of the power system to realize the control of the energy storage device; A switch for switching the on / off state of the circuit of the photovoltaic inverter energy storage device.

[0013] Further, the inverter box further includes: A communication component for remotely connecting to a control terminal to realize remote operation.

[0014] Further, the inverter box further includes: A display component for displaying the operation parameters of the energy storage device. Advantageous Effects

[0015] Compared with the prior art, the advantageous effects of the present invention are: The present invention is a photovoltaic inverter energy storage device for photovoltaic energy storage. This device can be externally connected to a photovoltaic power generation device and / or a power grid system for power storage and used as an emergency power supply. This product includes an inverter device that can perform AC / DC conversion and has a variety of usage scenarios.

[0016] The modules of the photovoltaic inverter energy storage device of the present invention are detachable and can be adjusted according to needs. For example, according to the needs of adjusting the battery assembly, the inverter box and the control box can be selectively installed. Description of the Drawings

[0017] Figure 1 Schematic diagram of module decomposition of the photovoltaic inverter energy storage device according to Embodiment 1 of the present invention.

[0018] Figure 2 Stereoscopic diagram of the base of the photovoltaic inverter energy storage device according to Embodiment 1 of the present invention.

[0019] Figure 3 Stereoscopic diagram of the battery assembly of the photovoltaic inverter energy storage device according to Embodiment 1 of the present invention.

[0020] Figure 4 It is Figure 3 Partial enlarged schematic diagram at position A in

[0021] Figure 5 Stereoscopic diagram of the battery assembly of the photovoltaic inverter energy storage device according to Embodiment 1 of the present invention from another angle.

[0022] Figure 6 It is Figure 5 Partial enlarged schematic diagram at position B in

[0023] Figure 7 Stereoscopic diagram of the high-voltage box of the photovoltaic inverter energy storage device according to Embodiment 1 of the present invention.

[0024] Figure 8 Stereoscopic diagram of the inverter box of the photovoltaic inverter energy storage device according to Embodiment 1 of the present invention.

[0025] Figure 9 It is Figure 8 Partial enlarged schematic diagram of

[0026] Figure 10 Schematic diagram of module decomposition of the photovoltaic inverter energy storage device according to Embodiment 2 of the present invention.

[0027] Figure 11 Stereoscopic diagram of the control box and inverter box of the photovoltaic inverter energy storage device according to Embodiment 2 of the present invention.

[0028] Figure 12 Stereoscopic diagram of another structure of the control box of the photovoltaic inverter energy storage device according to Embodiment 2 of the present invention.

[0029] Figure 13 Stereoscopic diagram of the photovoltaic inverter energy storage device according to Embodiment 2 of the present invention with the control box removed.

[0030] Figure 14 Stereoscopic diagram of the photovoltaic inverter energy storage device according to Embodiment 2 of the present invention with the control box installed.

[0031] Figure 15 Schematic diagram of the circuit connection of the battery assembly.

[0032] In the figure: 10. Base; 11. Base connecting member; 20, 20'. Battery assembly; 21. Battery connecting member; 22. Groove; 23. Connecting platform; 24, 25, 27. Screw holes; 26. Connecting groove; 30, 30'. High-voltage box; 31. High-voltage box connecting member; 32. Power connection port; 33. Switch; 34. Communication port; 40, 40'. Inverter box; 41, 41'. Inverter box wiring area; 411. PV connection port; 412. AC connection port; 42. Main switch; 43. Display screen; 50'. Control box; 51'. Variable wiring area; 52'. Display component. Detailed implementation mode

[0033] The present invention will be further described below in conjunction with specific embodiments and the drawings. Embodiment 1

[0034] Please refer to Figure 1 , an embodiment of the present invention provides a photovoltaic inverter energy storage device for photovoltaic energy storage. The device can be externally connected to a photovoltaic power generation device and / or a power grid system for power storage and used as an emergency power source.

[0035] The photovoltaic inverter energy storage device includes a base 10, a battery assembly 20, a high-voltage box 30 and an inverter box 40. The base 10 is used to support the entire energy storage device. The battery assembly 20 includes battery cells and a control board, and an appropriate number of battery assemblies 20 can be stacked according to requirements. The high-voltage box 30 is provided with a control board and related electronic components for controlling the entire energy storage device. The inverter box 40 is provided with an inverter module and a control board for converting and controlling photovoltaic power.

[0036] Please refer to Figure 15 , both ends of the battery assembly 20 are respectively provided with battery connecting members 21. Each battery connecting member 21 includes a battery positive connection section connected to the positive pole of the battery circuit, a battery negative connection section connected to the negative pole of the battery circuit, a control board positive connection section connected to the positive pole of the control board circuit, and a control board negative connection section connected to the negative pole of the control board circuit. When multiple battery assemblies 20 are stacked, the battery connecting members 21 of adjacent two battery assemblies 20 are connected so that the positive poles of the battery circuits, the negative poles of the battery circuits, the positive poles of the control board circuits and the negative poles of the control board circuits of the multiple battery assemblies 20 are respectively connected.

[0037] Please refer to Figure 2 and Figure 15 , the base 10 is provided with a base connecting member 11, and the base connecting member 11 respectively connects and communicates the battery positive connection section and the battery negative connection section and communicates the control board positive connection section and the control board negative connection section. The battery circuit and the control board circuit are closed to realize loop closure.

[0038] Please refer to Figure 1-6 Figure 1-6 , on the top of the outer casings of the battery assembly 20, the high-voltage box 30, and the inverter box 40, connection platforms 23 are provided, and on the bottom, connection grooves 26 are provided. Multiple boxes are stacked, and the connection platforms 23 of adjacent boxes are inserted into the connection grooves 26 and fixed by fixing members.

[0039] The battery assembly 20 is also provided with a groove 22 to facilitate handling.

[0040] On the top of the base 10, a connection platform 23 is provided to connect with the connection groove 26 of the adjacent battery assembly 20.

[0041] The fixing member can be a screw or a bolt, etc. The connection platforms 23 and the connection grooves 26 are provided with corresponding screw holes 24, 25, and 27.

[0042] Please refer to Figure 7 Figure 7 , at both ends of the high-voltage box 30, high-voltage box connectors 31 are provided, and the high-voltage box connector 31 at the bottom is used to connect the battery connector 21 of the battery assembly 20.

[0043] Inside the high-voltage box 30, a high-voltage box control board and related electronic components are provided for controlling the entire energy storage device.

[0044] On the side of the high-voltage box 30, a high-voltage box wiring area is provided, and inside the high-voltage box wiring area, a power connection port 32, communication ports 34 and 33 are provided.

[0045] The power connection port 32 is used to connect an external power supply device, for example, it can be connected to the power grid; at the same time, it can also be used to connect a power output device. The communication port 34 is used to connect a control device, such as an external controller, etc. When the entire energy storage device is connected to the power system, it is used to connect the control module of the power system to realize the control of the energy storage device.

[0046] The switch 33 is used to switch the on-off state of the circuit of the entire energy storage device.

[0047] Please refer to Figure 8 Figure 8 , the inverter box 40 is provided with an inverter box connector to connect with the high-voltage box connector 31 at the top of the high-voltage box 30.

[0048] Inside the inverter box 40, an inverter module and a control board are provided for converting and controlling photovoltaic power.

[0049] On the outer casing of the inverter box 40, a display screen 43, a main switch 42, and an inverter box wiring area are provided.

[0050] The display screen 43 is used to display the operating parameters of the energy storage device.

[0051] The main switch 42 is used to switch the on-off state of the circuit of the entire energy storage device.

[0052] Please refer to Figure 9 , the wiring area 41 of the inverter box includes a PV connection port 411, an AC connection port 412 and an output connection port.

[0053] The PV connection port 411 is used to connect photovoltaic power generation equipment, such as photovoltaic panels, etc.; The AC connection port 412 is used to connect to an AC power system, such as connecting to the power grid; The output connection port 413 is preferably an AC output port, which is used to connect to a household emergency power supply system and may also include a DC output port.

[0054] A communication component 414 is also provided in the inverter box 40, such as a wifi module, a bluetooth module, a 4G module, etc., which is used to remotely connect to a control terminal to realize remote operation. The control terminal includes an independent controller, a mobile phone, a computer, etc. Embodiment 2

[0055] Please refer to Figure 10 , the photovoltaic inverter energy storage device of this embodiment is basically the same as that of Embodiment 1. Compared with Embodiment 1, the photovoltaic inverter energy storage device of Embodiment 2 further includes a control box 50'. The control box 50' is arranged on the top of the device.

[0056] Please refer to Figure 11 , compared with Embodiment 1, the outer shell of the inverter box 40' no longer has a display screen. The display component 52' is arranged on the control box 50'. During actual use, the user can choose whether to install the inverter box 40' according to their own needs.

[0057] According to whether the inverter box 40' is installed, the control box 50' can be connected to the inverter box 40' or the high-voltage box 30' respectively for operation.

[0058] When the user does not install the inverter box 40', the whole machine can be used as an emergency energy storage / power supply device to access the home power grid and provide energy emergently when the home power is cut off.

[0059] In this embodiment, the main switch 42' of the inverter box 40' is moved to the wiring area.

[0060] Please refer to Figure 12 ·, a display component 52' is arranged on the control box 50', and a variable wiring area 51' is arranged on the side of the control box 50'. The variable wiring area 51' contains the following ports: The power output port is used to connect to a power output device; The communication port is used to connect to a control device, such as an external controller, etc. When the whole energy storage device is connected to the power system, it is used to connect to the control module of the power system to realize the control of the energy storage device.

[0061] It should be noted that when the inverter box 40' is not installed, the product provides DC current.

[0062] After the inverter box 40' is installed, the AC output interface on the inverter box 40' is used to provide AC current.

[0063] The interfaces in the variable wiring area 51' of the control box 50' are assembled in a way that can be hidden or detached. When the inverter box 40' is not installed, the output interface of the control box 50' is needed for power output. However, after the inverter box 40' is installed, power output is directly through the output interface of the inverter box 40'. Therefore, after the inverter box 40' is installed, the output interface of the control box 50' is in a useless state.

[0064] Please refer to Figure 13 and Figure 14 , in one embodiment, by adding a detachable cover plate to the variable wiring area 51', the interfaces are covered to improve the aesthetics of the product.

[0065] The examples described in the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design idea of the present invention, various deformations and improvements made by those skilled in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A photovoltaic inverter energy storage device, comprising a battery assembly, Characterized in that, It further includes: A high-voltage box, electrically connected to the battery assembly, provided with a power connection interface for connecting an external power supply device; An inverter box, electrically connected to the battery assembly. The inverter box includes an inverter module for converting photovoltaic power. The inverter box is provided with a PV connection port, an AC connection port and an output connection port. The PV connection port is used for connecting a photovoltaic power generation device, the AC connection port is used for connecting an AC power system, and the output connection port is used for connecting a household power supply system; The battery assembly, the high-voltage box and the inverter box are stacked in sequence and detachably fixed.

2. The photovoltaic inverter energy storage device according to claim 1, Characterized in that, The photovoltaic inverter energy storage device further includes: A control box, selectively electrically connected to the high-voltage box or the inverter box. The control box is provided with a variable wiring area, and the variable wiring area contains the following ports: A power output port for connecting a power output device; A communication port for connecting a control device to realize the control of the energy storage device.

3. The photovoltaic inverter energy storage device according to claim 2, Characterized in that, The variable wiring area is installed in the control box in a hidden or detachable manner.

4. The photovoltaic inverter energy storage device according to claim 2, Characterized in that, When the control box is connected to the high-voltage box, the photovoltaic inverter energy storage device is used to provide energy.

5. The photovoltaic inverter energy storage device according to claim 2, Characterized in that, The control box further includes: A display component for displaying the operating parameters of the energy storage device.

6. The photovoltaic inverter energy storage device according to claim 1, Characterized in that, The battery assembly includes battery cells and a control board. Both ends of the battery assembly are respectively provided with battery connectors. Each battery connector includes a battery positive connection section connected to the positive electrode of the battery circuit, a battery negative connection section connected to the negative electrode of the battery circuit, a control board positive connection section connected to the positive electrode of the control board circuit, and a control board negative connection section connected to the negative electrode of the control board circuit; The photovoltaic inverter energy storage device includes a plurality of battery assemblies. The plurality of battery assemblies are stacked. The battery connectors of adjacent two battery assemblies are connected so that the positive electrode of the battery circuit, the negative electrode of the battery circuit, the positive electrode of the control board circuit and the negative electrode of the control board circuit of the plurality of battery assemblies are respectively connected; The photovoltaic inverter energy storage device further includes a base for carrying a plurality of battery assemblies. The base is provided with base connectors, and the base connectors connect and communicate the battery positive connection section and the battery negative connection section respectively and communicate the control board positive connection section and the control board negative connection section.

7. The photovoltaic inverter energy storage device according to claim 1, Characterized in that, Both the tops of the outer shells of the battery assembly, the high-voltage box and the inverter box are provided with connection platforms, and both the bottoms are provided with connection grooves. The plurality of boxes are stacked so that the connection platforms of adjacent boxes are embedded in the connection grooves and fixed by fixing parts.

8. The photovoltaic inverter energy storage device according to claim 1, Characterized in that, The high-voltage box further includes: A communication port for connecting to a control device. When the photovoltaic inverter energy storage device is connected to the power system, the communication port is used to connect to the control module of the power system to achieve control of the energy storage device. A switch for switching the on / off state of the circuit of the photovoltaic inverter energy storage device.

9. The photovoltaic inverter energy storage device according to claim 1, characterized in that the inverter box further comprises: a communication component for remotely connecting to a control terminal to achieve remote operation.

10. The photovoltaic inverter energy storage device according to claim 1, characterized in that the inverter box further comprises: a display component for displaying the operating parameters of the energy storage device.

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