An off-grid photovoltaic energy storage system

Abstract

This utility model relates to the field of photovoltaic energy storage technology and provides an off-grid photovoltaic energy storage system, including a cabinet. The cabinet includes a battery area where battery packs are installed and a component area where supporting energy storage monitoring and management components are installed. The battery area has at least one pull-out carrier plate for supporting and fixing the batteries. The carrier plate is equipped with fastening components for fixing all the batteries on the carrier plate. When installing batteries, the carrier plate is pulled out of the battery area, and then the batteries are placed on the carrier plate one by one and connected with wires according to the battery pack design. Then, all the batteries on the carrier plate are fixed in batches by the fastening components. Battery installation is carried out outside the battery area, ensuring sufficient space for operation. The batch fixing method of batteries greatly improves battery installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic energy storage technology, specifically an off-grid photovoltaic energy storage system. Background Technology

[0002] Off-grid photovoltaic energy storage systems, as a key technology that operates independently of the public power grid and can store solar energy and convert it into electricity for users, play an important role in areas such as power supply in remote areas, emergency power supply, and distributed energy systems.

[0003] Currently, most off-grid photovoltaic energy storage systems on the market adopt the form of energy storage cabinets. The energy storage cabinet contains battery packs and is equipped with components such as a battery management system (BMS), inverter, charge controller, circuit breaker, fuse, and monitoring module. In the energy storage cabinet, the battery pack is usually composed of multiple batteries connected in series, parallel, or series-parallel combination to meet the system's voltage and capacity requirements. In practical applications, the batteries are mostly fixed and installed with bolts. Due to the limited internal space of the energy storage cabinet, during the installation process, operators need to repeatedly tighten the bolts in a relatively small space. This not only increases the difficulty of operation but also easily leads to operational errors, affecting the installation quality and efficiency. Moreover, when it is necessary to maintain, replace, or adjust the layout of the batteries, the process of removing the bolts is also cumbersome, consuming a lot of time and labor costs.

[0004] Therefore, this utility model proposes an off-grid photovoltaic energy storage system to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an off-grid photovoltaic energy storage system to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An off-grid photovoltaic energy storage system includes a cabinet, which includes a battery area where battery packs are installed and a component area where supporting energy storage monitoring and management components are installed. The battery area is provided with at least one pull-out mounting plate for supporting and fixing the batteries. The mounting plate is provided with fastening components for fixing all the batteries on the mounting plate.

[0008] In one alternative embodiment: the fastening assembly includes a lifting component located below the carrier plate and capable of moving up and down. The carrier plate has multiple placement positions for placing batteries arranged on it. Each placement position has horizontally arranged sliding grooves and clamps on both sides. The clamps slide in cooperation with the corresponding sliding grooves, and a linkage rod is hinged between the clamps and the lifting component. Each clamp has a boss that slides and engages in the corresponding sliding groove. The other two sides of each placement position also have limiting blocks for restricting the movement of the battery along a direction that is horizontal and perpendicular to the line connecting the two clamps.

[0009] In one alternative: the clamping side of the clamping plate is provided with a protective pad.

[0010] In one alternative: the carrier plate is symmetrically provided with a plurality of guide rods that move through the lifting component, and the carrier plate is also rotatably provided with a threaded rod that passes through the lifting component in a threaded manner, and the threaded rod is provided with a handwheel.

[0011] In one alternative: guide rails are provided on both sides of the carrier plate inside the battery area, and the two sides of the carrier plate are slidably locked in the corresponding guide rails. Bolts for positioning the carrier plate are provided on the guide rails, and internal threaded holes adapted to the bolts are provided on the carrier plate.

[0012] In one alternative: the guide rail is provided with a limiting protrusion, and the side of the loading plate is provided with a slot that is adapted to the limiting protrusion and closed at the rear end. The limiting protrusion is engaged in the slot to prevent the loading plate from being pulled off.

[0013] Compared with the prior art, the beneficial effects of this utility model embodiment are as follows:

[0014] When installing batteries, the carrier plate is pulled out of the battery area, and then the batteries are placed on the carrier plate one by one and the wires are connected according to the battery pack design. Then, all the batteries on the carrier plate are batch-fixed by fastening components. Battery installation is carried out outside the battery area to ensure sufficient space for operation. The batch fixing method of batteries is adopted, which greatly improves the battery installation efficiency.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a front view of an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the structure between the carrier plate and the fastening assembly in an embodiment of this utility model.

[0020] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 5 for Figure 1 Enlarged view of section B in the middle.

[0022] Figure label annotations: 1-Cabinet body, 101-Battery area, 102-Component area, 2-Battery, 3-Carrier plate, 4-Fastening assembly, 401-Placement position, 402-Slide groove, 403-Clamping plate, 404-Boss, 405-Limiting block, 406-Lifting component, 407-Guide rod, 408-Linkage rod, 409-Threaded rod, 410-Handwheel, 5-Guide rail, 6-Limiting protrusion, 7-Slot, 8-Bolt, 9-Internal threaded hole, 10-Cabinet door. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Please see Figure 1 and Figure 2 An off-grid photovoltaic energy storage system includes a cabinet 1 with a cabinet door 10. The cabinet 1 includes a battery area 101 where battery packs are installed and a component area 102 where a matching energy storage monitoring and management component (including a battery management system, inverter, charging controller, circuit breaker, fuse, monitoring module, etc., which are existing technologies and will not be described in detail here) is installed. The system is characterized in that the battery area 101 has at least one pull-out mounting plate 3 for supporting and fixing the batteries, and the mounting plate 3 is provided with a fastening component 4 for fixing all the batteries on the mounting plate 3.

[0025] When installing batteries, pull the carrier plate 3 out of the battery area 101, then place the batteries on the carrier plate 3 one by one and connect the wires according to the battery pack design. Then, use the fastening assembly 4 to fix all the batteries on the carrier plate 3 in batches. Battery installation is carried out outside the battery area 101, ensuring sufficient space for operation. The batch fixing method greatly improves battery installation efficiency and makes battery installation and removal convenient. When maintaining, replacing or adjusting the layout of batteries, the carrier plate 3 is pulled out of the battery area 101 first, and then the corresponding operation is carried out outside the battery area 101. It should be noted that during the process of pulling the carrier plate 3 out of the battery area 101, the wires pulled should have a certain length of extra length to meet the pulling requirements of the carrier plate 3, ensuring that the carrier plate 3 can be pulled out of the battery area 101 normally without pulling the corresponding wires and causing the joints to loosen or fall off.

[0026] Please see Figure 1 , Figure 3 and Figure 4 In one embodiment of the present invention, the fastening assembly 4 includes a lifting member 406 located below the carrier plate 3 and capable of moving up and down. The carrier plate 3 is provided with a plurality of placement positions 401 for placing batteries. The placement positions 401 are provided with horizontally arranged sliding grooves 402 and clamping plates 403 on both sides. The clamping plates 403 are slidably engaged with the corresponding sliding grooves 402, and a linkage rod 408 is hinged between the clamping plates 403 and the lifting member 406. The clamping plates 403 are provided with protrusions 404 that are slidably engaged in the corresponding sliding grooves 402. The other two sides of the placement positions 401 are also provided with limiting blocks 405 for restricting the movement of the battery along a direction that is horizontal and perpendicular to the line connecting the two clamping plates 403.

[0027] The loading plate 3 is symmetrically provided with several guide rods 407 that move through the lifting member 406. The loading plate 3 is also rotatably provided with a threaded rod 409, which passes through the lifting member 406 in a threaded manner, and a handwheel 410 is provided on the threaded rod 409.

[0028] It should be noted that the vertical distance between the limiting blocks 405 located on both sides of the placement position 401 is consistent with the width (or length) of the battery, so as to limit the battery and prevent the battery from shifting when clamped; in addition, this application is only applicable to the installation of batteries of specific sizes (generally speaking, the size of the batteries that make up the battery pack in the energy storage system is mostly fixed).

[0029] In this embodiment, the batteries to be installed are placed sequentially on the respective placement positions 401 on the carrier plate 3, and the batteries are limited by the limiting block 405 in the direction perpendicular to the line connecting the two clamping plates 403. Then, the threaded rod 409 is rotated by the handwheel to drive the carrier plate 3 to descend. Under the action of the linkage rod 408, the carrier plate 3 descends and drives the corresponding two clamping plates 403 to move closer to each other, thereby clamping and fixing the battery and realizing the rapid installation of the battery.

[0030] Furthermore, in this embodiment, the clamping side of the clamping plate 403 is provided with a protective pad to clamp and protect the battery, thereby preventing damage to the battery.

[0031] Please see Figure 1 , Figure 3 and Figure 5 In one embodiment of this utility model, the battery area 101 is provided with guide rails 5 on both sides of the carrier plate 3. The two sides of the carrier plate 3 are respectively slidably locked in the corresponding guide rails 5. The guide rails 5 are provided with bolts 8 for positioning the carrier plate 3. The carrier plate 3 is provided with internal threaded holes 9 that are adapted to the bolts 8. When the carrier plate 3 needs to be pulled out, the bolts 8 are first rotated to disengage it from the internal threaded holes 9, and then the carrier plate 3 is pulled.

[0032] Furthermore, in this embodiment, the guide rail 5 is provided with a limiting protrusion 6, and the side of the loading plate 3 is provided with a slot 7 that is adapted to the limiting protrusion 6 and closed at the rear end (i.e. the end away from the cabinet door 10). The limiting protrusion 6 is locked in the slot 7 to prevent the loading plate 3 from being pulled off.

[0033] Furthermore, in this embodiment, the carrier plate 3 is also provided with a handle for pulling it out.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A kind of off-grid photovoltaic energy storage system, including cabinet (1), the cabinet (1) includes the battery area (101) of installation battery group and the component area (102) of installation matched energy storage monitoring management component, it is characterized in that, The battery area (101) is provided with at least one carrier plate (3) for carrying and fixing the battery, and the carrier plate (3) is provided with a fastening component (4) for fixing all the batteries on the carrier plate (3). The fastening assembly (4) includes a lifting member (406) located below the carrier plate (3) and capable of moving up and down. The carrier plate (3) is provided with a plurality of placement positions (401) for placing batteries. The placement positions (401) are provided with horizontally arranged sliding grooves (402) and clamping plates (403) on both sides. The clamping plates (403) are slidably engaged with the corresponding sliding grooves (402), and a linkage rod (408) is hinged between the clamping plates (403) and the lifting member (406).

2. The off-grid photovoltaic energy storage system of claim 1, wherein, The clamping plate (403) is provided with a boss (404) that is slidably engaged in the corresponding slide groove (402). The other two sides of the placement position (401) are also provided with limiting blocks (405) for restricting the movement of the battery along the direction that is horizontal and perpendicular to the line connecting the two clamping plates (403).

3. The off-grid photovoltaic energy storage system of claim 1, wherein, The clamping side of the clamping plate (403) is provided with a protective pad.

4. The off-grid photovoltaic energy storage system of claim 1, wherein, The loading plate (3) is symmetrically provided with a number of guide rods (407) that can move through the lifting component (406). The loading plate (3) is also rotatably provided with a threaded rod (409). The threaded rod (409) passes through the lifting component (406) in a threaded manner, and a handwheel (410) is provided on the threaded rod (409).

5. The off-grid photovoltaic energy storage system of claim 1, wherein, The battery area (101) is provided with guide rails (5) on both sides of the carrier plate (3). The two sides of the carrier plate (3) are respectively slidably locked in the corresponding guide rails (5). The guide rails (5) are provided with bolts (8) for positioning the carrier plate (3). The carrier plate (3) is provided with internal threaded holes (9) that are adapted to the bolts (8).

6. The off-grid photovoltaic energy storage system of claim 5, wherein, The guide rail (5) is provided with a limiting protrusion (6), and the side of the loading plate (3) is provided with a slot (7) that is adapted to the limiting protrusion (6) and closed at the rear end. The limiting protrusion (6) is locked in the slot (7) to prevent the loading plate (3) from being pulled off.

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