CN220087176U - A scalable capacity photovoltaic energy storage system - Google Patents

Abstract

The utility model discloses a photovoltaic energy storage system with expandable capacity, which relates to the technical field of photovoltaic energy storage, and comprises a plurality of photovoltaic panel strings, a storage battery pack, a lithium battery intelligent controller for controlling the storage battery pack and an inverter, wherein one side of the inverter is connected with a plurality of loads, the photovoltaic panel strings, the storage battery pack and the lithium battery intelligent controller are all connected with the inverter, the adjacent storage battery packs are connected in a clamping manner, the storage battery packs are arranged in the middle of an inner cavity of the installation frame, the adjacent storage batteries are connected through wires, a clamping plate is hinged to one end part of the installation frame, which is far away from the lithium battery intelligent controller, the upper end part and the lower end part of the clamping plate are movably inserted with limiting pins from inside to outside, the limiting pins are movably sleeved with reset springs, the opposite ends of the limiting pins are connected with limiting rods through threads, the upper end part and the lower end part of the installation frame are respectively provided with limiting holes, and the limiting pins are movably inserted into the limiting holes. The utility model effectively shortens the connection time of the adjacent storage battery, and has simple operation and convenient use.

Description

A scalable capacity photovoltaic energy storage system

Technical field

The utility model relates to the technical field of photovoltaic power generation, specifically a photovoltaic energy storage system with scalable capacity.

Background technique

Photovoltaic power generation is an important clean energy source, but due to its unstable nature, energy storage is required to be able to supply power when needed. At present, relatively mature energy storage technologies include battery energy storage, compressed air energy storage, liquid flow energy storage and other methods.

The main energy storage method of photovoltaic power generation is battery energy storage. Battery energy storage is to store the electric energy generated by photovoltaic power generation in the battery, and then release the electric energy in the battery when the electricity is needed. In this way, the continuity and reliability of photovoltaic power generation can be guaranteed. By increasing the number of batteries, the capacity of photovoltaic energy storage can be effectively expanded.

There is an existing photovoltaic energy storage cabinet with publication number CN215378803U. Existing photovoltaic energy storage devices are usually designed as a whole according to the installed capacity. When the installed capacity is large, the overall volume of the cabinet will also become larger. Transportation and Install. Its public solution, when used with connectors of a certain length, can be used not only as a single unit but also as multiple units in parallel, solving the problem of large energy storage cabinets and inconvenient transportation and installation in large-capacity installation scenarios. However, the connection process requires the use of tools, which makes the connection process relatively cumbersome and labor-intensive. In response to this, we propose a photovoltaic energy storage system with scalable capacity.

Utility model content

The purpose of this utility model is to provide a photovoltaic energy storage system with scalable capacity to solve the problem that the connection of adjacent battery packs proposed in the above background technology requires the use of tool assistance, resulting in a relatively cumbersome and laborious connection process. .

In order to achieve the above purpose, the present utility model provides the following technical solution: a photovoltaic energy storage system with scalable capacity, including a plurality of photovoltaic panel strings, a battery pack, a lithium battery intelligent controller for battery pack control, and an inverter. There are multiple loads connected to one side of the inverter. The photovoltaic panel strings, battery packs and lithium battery intelligent controllers are all connected to the inverter. The adjacent battery packs are snap-connected. The battery pack includes a mounting frame. There is a battery in the middle of the inner cavity of the mounting frame. The adjacent batteries are connected by wires. An end of the mounting frame away from the lithium battery intelligent controller is hinged with a snap plate. The upper and lower ends of the clamping plate are movablely inserted into the limit pins from the inside to the outside. A return spring is movablely connected to the limit pin. The return spring is located above the limit rod. The opposite end of the limit pin passes through The limit rod is threadedly connected, the end of the limit pin away from the limit rod is arc-shaped, the upper and lower ends of the mounting frame are provided with limit holes, and the limit pin is movably inserted into the limit hole.

Preferably, the clamping plate is provided with a ventilation opening, and the ventilation opening is provided on the side where the clamping plate is connected to the mounting bracket.

Preferably, the upper and lower ends of the mounting bracket are provided with "U"-shaped grooves, and the return spring is located inside the grooves.

Preferably, the limiting rod is located inside the adjacent limiting pin, and the centers of the limiting rod and the limiting pin are collinear.

Preferably, the distance between the limiting hole and the left end of the mounting bracket is smaller than the width of the clamping plate.

Preferably, the inner diameter of the limiting hole is equal to the outer diameter of the limiting pin.

Preferably, the limiting pin is in a "T" shape and is located above the limiting rod.

Compared with the existing technology, the beneficial effects of this utility model are:

1. This kind of photovoltaic energy storage system with scalable capacity can be used to increase the capacity of the photovoltaic energy storage equipment by increasing the number of battery packs. During specific operation, only the snap-in plate needs to be flipped inward to snap it into the adjacent battery. It is simple to operate and easy to use, and does not require special tools. It effectively shortens the connection time of adjacent battery groups and is worthy of promotion and use.

Description of drawings

Figure 1 is a schematic diagram of the battery pack of the present invention from a first perspective;

Figure 2 is a schematic diagram of the battery pack of the present invention from a second perspective;

Figure 3 is a schematic top view of the battery pack of the present invention;

Figure 4 is a schematic structural diagram of the battery pack of the present utility model;

Figure 5 is an enlarged schematic diagram of M in Figure 1;

Figure 6 is a schematic diagram of the principle of the present utility model.

In the picture: 100. Lithium battery intelligent controller; 2. Battery pack; 20. Mounting frame; 21. Battery; 22. Snap plate; 23. Ventilation opening; 24. Limit hole; 25. Limit pin; 26. Return spring; 27. Limit lever.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Embodiment: Please refer to Figures 1-6. The present utility model provides a technical solution: a photovoltaic energy storage system with scalable capacity, including a plurality of photovoltaic panel strings, a battery pack 2, and a battery for controlling the battery pack 2. The lithium battery intelligent controller 100 and the inverter have multiple loads connected to one side of the inverter. The photovoltaic panel string, the battery pack 2 and the lithium battery intelligent controller 100 are all connected to the inverter. By adding the battery pack 2 Increasing the number can increase the expansion capacity of the photovoltaic energy storage device, so that the number of battery packs 2 can be configured according to actual needs.

Please refer to Figure 1, Figure 2 and Figure 3, in which adjacent battery packs 2 are snap-connected, and the battery pack 2 includes a mounting frame 20. Among the multiple adjacent battery packs 2, there is a connection point with the lithium battery intelligent controller 100. The battery pack 2 has a mounting bracket 20 arranged above it and is fixedly mounted on the casing of the lithium battery intelligent controller 100 .

Specifically, a battery 21 is provided in the middle of the inner cavity of the mounting frame 20. Adjacent batteries 21 are connected by wires. A groove for placing the battery 21 is provided on the mounting frame 20. Through the arrangement of the groove, the battery 21 can be placed Fixing on the mounting bracket 20 is more stable.

Furthermore, a clamping plate 22 is hinged at an end of the mounting frame 20 away from the lithium battery intelligent controller 100 . The length of the clamping plate 22 is smaller than the height of the mounting frame 20 , and the width of the clamping plate 22 is smaller than the length of the mounting frame 20 . 1/2.

Furthermore, a ventilation opening 23 is provided on the clamping plate 22 , and the ventilation opening 23 is provided on the side where the clamping plate 22 is connected to the mounting bracket 20 . The vents 23 can easily dissipate heat from the batteries 21 . The vents 23 are located in the middle of adjacent batteries 21 . During the use of the batteries 21 , the vents 23 can facilitate the heat dissipation, and the wind can flow from the adjacent batteries 21 . Circulation between adjacent batteries 21 increases the ventilation area of the opposite surface of the batteries 21 and is more conducive to heat dissipation of the batteries 21 .

Please refer to FIG. 3 . Limiting pins 25 are movably inserted into the upper and lower ends of the clamping plate 22 from the inside to the outside. At least four limiting pins 25 are provided on a single battery pack 2 . A return spring 26 is movably connected to the limit pin 25, and a "U"-shaped groove is provided at the upper and lower ends of the mounting frame 20, and the return spring 26 is located inside the groove. Through the arrangement of the return spring 26, the limit pin 25 can protrude above the mounting bracket 20, thereby facilitating the snap-fitting and fixing of the adjacent battery packs 2 without the assistance of special tools, saving time and effort, and shortening the installation time. .

Further, the limiting rod 27 is connected through threads at the opposite end of the limiting pin 25 . The limiting pin 25 is in a "T" shape, and the limiting pin 25 is provided above the limiting rod 27 . The return spring 26 is arranged above the limit rod 27. The limit rod 27 is connected to the limit pin 25 by threading. By rotating the limit rod 27, the limit pin 25 and the limit rod 27 are separated, which can facilitate the reset. The spring 26 is replaced, thereby effectively ensuring the connection stability of the adjacent battery packs 2 .

Furthermore, the end of the limit pin 25 away from the limit rod 27 is arc-shaped, and the upper end of the limit pin 25 is arranged in an arc shape, which can facilitate it to be inserted into the adjacent mounting bracket 20 . Specifically, limiting holes 24 are formed at the upper and lower ends of the mounting bracket 20 , and the limiting pins 25 are movably inserted into the limiting holes 24 . The limiting rod 27 is provided inside the adjacent limiting pin 25, and the centers of the limiting rod 27 and the limiting pin 25 are collinear. The distance between the limiting hole 24 and the left end of the mounting bracket 20 is smaller than the width of the clamping plate 22 . The inner diameter of the limiting hole 24 is equal to the outer diameter of the limiting pin 25 . When the battery pack 2 is not installed, the clamping plate 22 can be turned outward at a certain angle so that it can be folded on the mounting frame 20 , which reduces the occupied area of the photovoltaic energy storage device and is worthy of popularization.

In this type of photovoltaic energy storage system with scalable capacity, when the photovoltaic energy storage capacity is expanded by adding battery packs 2, the adjacent battery packs 2 are attached together, and the snap-in plate 22 is flipped 180 degrees inward to make it snap. into the mounting bracket 20 of the adjacent battery pack 2. During the clamping process, the return spring 26 is compressed; and when the limit pin 25 corresponds to the upper and lower positions of the limit hole 24, at this time, the limit pin 25 moves from the limit position The hole 24 is inserted inside, and through the elastic reset effect of the return spring 26, the limit pin 25 protrudes from the corresponding mounting bracket 20, so that the adjacent battery packs 2 can be quickly connected. It is simple to operate, easy to use, and does not require special tools. It is worthy of promotion. use.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a photovoltaic energy storage system of scalable capacity, includes by a plurality of photovoltaic panel group strings, storage battery (2), is used for lithium cell intelligent control ware (100) and the dc-to-ac converter of storage battery (2) control, dc-to-ac converter one side is connected with a plurality of loads, its characterized in that: photovoltaic panel group cluster, storage battery (2) and lithium cell intelligent control ware (100) all are connected with the dc-to-ac converter, it is adjacent storage battery (2) joint is connected, storage battery (2) are including mounting bracket (20), mounting bracket (20) inner chamber middle part is equipped with battery (21), it is adjacent connect through the wire between battery (21), one end that lithium cell intelligent control ware (100) was kept away from to mounting bracket (20) articulates there is joint board (22), joint board (22) upper and lower tip has peg graft spacer pin (25) by inside outside movable, reset spring (26) have been cup jointed to the activity on spacer pin (25), spacer pin (25) are located spacer rod (27) top, one end that spacer rod (27) were kept away from to spacer pin (25) is convex through threaded connection, spacing hole (24) have all been seted up to tip about mounting bracket (20), spacer pin (25) activity peg graft inside spacer hole (24).

2. The scalable capacity photovoltaic energy storage system of claim 1, wherein: the clamping plate (22) is provided with a vent (23), and the vent (23) is arranged on one side of the clamping plate (22) connected with the mounting frame (20).

3. The scalable capacity photovoltaic energy storage system of claim 1, wherein: u-shaped grooves are formed in the upper end portion and the lower end portion of the mounting frame (20), and the reset springs (26) are arranged in the grooves.

4. The scalable capacity photovoltaic energy storage system of claim 1, wherein: the limiting rod (27) is arranged adjacent to the inner side of the limiting pin (25), and the centers of the limiting rod (27) and the limiting pin (25) are collinear.

5. The scalable capacity photovoltaic energy storage system of claim 1, wherein: spacing hole (24) and the width of joint board (22) are less than to the interval of mounting bracket (20) left end.

6. The scalable capacity photovoltaic energy storage system of claim 1, wherein: the inner diameter of the limiting hole (24) is equal to the outer diameter of the limiting pin (25).

7. The scalable capacity photovoltaic energy storage system of claim 1, wherein: the limiting pin (25) is T-shaped, and the limiting pin (25) is arranged above the limiting rod (27).