Off-grid light storage and firewood storage energy integrated machine

Abstract

The utility model discloses a kind of off-grid light storage firewood energy storage all-in-one machine, belong to new energy energy storage equipment technical field including cabinet, cabinet's cabinet cavity is equipped with energy storage hybrid current transformer and several air-cooled battery packs by track group plug-in connection. Track group includes multiple groups of ball guide rail on the track plate of cabinet cavity bottom, and the sliding clamping groove of cabinet cavity top;Lower air duct is formed by being provided with lower concave structure between ball guide rail on track plate, upper air duct is formed between the upper end of battery pack and the top of cabinet cavity, and it is collectively constituted that high -efficient heat dissipation air duct. The utility model is through the integrated structure of optimized guide rail and air duct, solve the problem that battery module is difficult to push and pull in existing energy storage all-in-one machine, heat dissipation efficiency is low, realize the convenient maintenance of battery and the stable heat dissipation of system, especially applicable to small off-grid scene. While the addition of multiple mode interface group makes the machine can be flexibly applied to multiple charging modes, realizes multi-channel charging, has very strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of new energy storage equipment technology, and in particular to an off-grid integrated photovoltaic-diesel energy storage machine. Background Technology

[0002] With the rapid development of the new energy storage industry, energy storage products are gradually being applied to various fields. Not only are high-energy-density battery energy storage systems being used on a large scale in new energy power plants, but some low-capacity, small-volume energy storage products are also gradually appearing in many industrial and commercial sites and even civilian sites.

[0003] Most current integrated energy storage units are large-capacity commercial and industrial units, with capacities exceeding 200kWh. These units are primarily used in distributed energy storage power stations, centralized urban photovoltaic-storage charging stations, and other locations with high electricity demand. Their main revenue model relies on the peak-valley price difference in urban electricity to reduce energy costs. These devices typically occupy about 4 cubic meters, are over 2 meters high, and weigh approximately 2.8 tons. For remote or pastoral areas, their excessive capacity, size, and weight make them very inconvenient to move.

[0004] However, as the size is reduced and the internal electrical equipment is made more compact, the fit between multiple battery packs is very tight, resulting in a significant reduction in heat dissipation space / airflow area. At the same time, the bottom of the battery pack has a flat sliding contact after insertion, which will cause high insertion and removal resistance and make installation and removal difficult. Moreover, due to the large weight of the batteries, ordinary sheet metal bottom supports are prone to deformation. In addition, the limited internal space of small cabinets makes it difficult to install multi-mode interfaces and cannot meet the flexible access requirements of mains power grid, diesel generators, photovoltaic modules, etc. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an off-grid integrated photovoltaic-diesel energy storage machine in order to overcome the shortcomings of the existing technology.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an off-grid photovoltaic-storage-diesel energy storage integrated machine, including a cabinet, wherein the cabinet is provided with several independent cabinet cavities from top to bottom, wherein an energy storage hybrid converter and several air-cooled battery packs are installed in the cabinet cavities, wherein the air-cooled battery packs are inserted into the cabinet cavities through a rail group, wherein a rail plate is provided at the bottom of the cabinet cavity, wherein four sets of ball bearing guide rails are equally spaced from left to right on the rail plate, and sliding slots are equally spaced at the top of the cabinet cavity;

[0007] The lower end face of the air-cooled battery pack is provided with a groove that mates with the ball guide rail, and the upper end face of the air-cooled battery pack is provided with a retaining strip that mates with the sliding slot; the track plate is provided with a recessed structure between every two sets of ball guide rails to form a lower air duct, and the upper end face of the air-cooled battery pack and the top of the cabinet cavity form an upper air duct.

[0008] An external interface box, which is electrically connected to the energy storage hybrid converter and the air-cooled battery pack, is installed on the side wall of the cabinet.

[0009] Furthermore, the ball bearing guide rail of this utility model extends inward from the cabinet cavity entrance, and a number of balls are movably installed inside the ball bearing guide rail.

[0010] Furthermore, the ball bearings described in this invention are made of high-carbon chromium bearing steel.

[0011] Furthermore, guide slides are provided at the left and right entrances inside the cabinet cavity of this utility model.

[0012] Furthermore, the lower end of the external interface box described in this utility model is slidably connected to an interface group via a sliding groove.

[0013] Furthermore, the interface group described in this utility model includes an AC400V three-phase AC input interface, an AC400V three-phase AC output interface, and a photovoltaic input interface.

[0014] The beneficial effects of this utility model are:

[0015] 1. The track assembly, which combines bottom ball bearing guides and top sliding slots, transforms sliding friction into rolling friction, making the push-pull operation of heavy-duty air-cooled battery packs extremely labor-saving and smooth; and the ball bearing support of high-carbon chromium bearing steel solves the problem of easy deformation of ordinary sheet metal bottom supports, greatly reducing maintenance difficulty and labor costs.

[0016] 2. The recessed structure on the track plate naturally forms a downdraft, which together with the updraft on the top of the battery pack forms a cooling airflow path around the battery pack, improving heat dissipation efficiency and ensuring the system's operational stability in high-temperature environments.

[0017] 3. Multiple independent cabinet compartments enable the separation and integration of functional modules. External interface boxes protect external interfaces, and retractable interface groups further save space and facilitate wiring. The overall structure is rationally laid out, with good rigidity, making it suitable for frequent movement and transportation. At the same time, the addition of multi-mode interface groups allows the unit to flexibly apply various charging methods, achieving multi-channel charging and possessing strong adaptability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the air-cooled battery pack inside the cabinet cavity in this utility model.

[0021] The following are the labels in the diagram: 1. Cabinet, 2. Cabinet cavity, 3. Energy storage hybrid converter, 4. Air-cooled battery pack, 5. Track plate, 6. Ball bearing guide rail, 7. Sliding slot, 8. Groove, 9. Clip, 10. Lower air duct, 11. Upper air duct, 12. External interface box, 13. Ball bearing, 14. Guide slide plate, 15. Sliding groove, 16. Interface group. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] like Figure 1 and Figure 2 The off-grid photovoltaic-storage-diesel energy storage integrated unit shown includes a cabinet 1. The cabinet 1 has several independent cabinet cavities 2 arranged from top to bottom. The cabinet cavities 2 are equipped with energy storage hybrid converters 3 and several air-cooled battery packs 4. The air-cooled battery packs 4 are inserted into the cabinet cavities 2 through rail sets. The bottom of the cabinet cavities 2 is provided with a rail plate 5. Four sets of ball bearing guide rails 6 are arranged equidistantly from left to right on the rail plate 5. The top of the cabinet cavities 2 is provided with sliding slots 7 at equal intervals.

[0024] The lower end face of the air-cooled battery pack 4 is provided with a groove 8 that mates with the ball bearing guide rail 6, and the upper end face of the air-cooled battery pack 4 is provided with a retaining strip 9 that mates with the sliding slot 7; a recessed structure is provided on the track plate 5 between every two sets of ball bearing guide rails 6 to form a lower air duct 10, and an upper air duct 11 is formed between the upper end face of the air-cooled battery pack 4 and the top of the cabinet cavity 2; the upper and lower air ducts, together with the cooling fan inside the cabinet, can create a good heat dissipation environment in each independent cavity;

[0025] An external interface box 12, which is electrically connected to the energy storage hybrid converter 3 and the air-cooled battery pack 4, is installed on the side wall of the cabinet 1.

[0026] The ball bearing guide 6 extends inward from the entrance of the cabinet cavity 2, and several balls 13 are movably installed inside the ball bearing guide 6. The balls 13 are made of high carbon chromium bearing steel (such as GCr15), and are heat-treated to achieve extremely high hardness (HRC 60 or above). Their compressive strength is much higher than that of ordinary sheet metal, which can effectively distribute huge concentrated stresses to the entire track structure. They are designed to withstand high loads and, while maintaining the advantages of rolling friction, can prevent the bottom of the cavity from deforming.

[0027] Guide slides 14 are installed at the left and right entrances inside the cabinet cavity 2.

[0028] The lower end of the external interface box 12 is slidably connected to the interface group 16 via the sliding groove 15.

[0029] Interface group 16 includes an AC400V three-phase AC input interface, which can be connected to the mains power grid and a diesel generator as a charging port; an AC400V three-phase AC output interface and a photovoltaic input interface.

[0030] This integrated unit allows for multi-path charging, is easy to transport, more flexible and versatile, has good applicability, and requires less investment. When charging via photovoltaic power generation, it can form an off-grid microgrid system with the photovoltaic system, achieving self-generation and self-consumption, being green and environmentally friendly, and providing stable low-power power supply in remote areas. When the equipment is used in areas far from the power grid, it can be charged by a diesel generator and then continue to operate. This reduces the fuel consumption of the diesel generator while providing a stable power output, resulting in low energy consumption and high economic efficiency.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An off-grid integrated photovoltaic-storage-diesel energy storage unit, characterized in that: The system includes a cabinet (1), which has several independent cabinet cavities (2) arranged from top to bottom. Each cabinet cavity (2) is equipped with an energy storage hybrid converter (3) and several air-cooled battery packs (4). The air-cooled battery packs (4) are inserted into the cabinet cavity (2) via a rail assembly. A rail plate (5) is provided at the bottom of the cabinet cavity (2). Four sets of ball bearing guide rails (6) are equidistantly arranged from left to right on the rail plate (5). Sliding slots (7) are equidistantly arranged at the top of the cabinet cavity (2). The lower end face of the air-cooled battery pack (4) is provided with a groove (8) that cooperates with the ball guide rail (6), and the upper end face of the air-cooled battery pack (4) is provided with a clip (9) that cooperates with the sliding slot (7); the track plate (5) is provided with a recessed structure between every two sets of ball guide rails (6) to form a lower air duct (10), and the upper end face of the air-cooled battery pack (4) and the top of the cabinet cavity (2) form an upper air duct (11); An external interface box (12) electrically connected to the energy storage hybrid converter (3) and the air-cooled battery pack (4) is installed on the side wall of the cabinet (1).

2. The off-grid photovoltaic-diesel integrated energy storage unit as described in claim 1, characterized in that: The ball guide rail (6) extends inward from the entrance of the cabinet cavity (2), and several balls (13) are movably installed inside the ball guide rail (6).

3. The off-grid photovoltaic-diesel integrated energy storage unit as described in claim 2, characterized in that: The ball bearing (13) is made of high carbon chromium bearing steel.

4. The off-grid photovoltaic-diesel energy storage integrated machine as described in claim 1, characterized in that: Guide slides (14) are provided at the left and right entrances inside the cabinet cavity (2).

5. The off-grid photovoltaic-diesel integrated energy storage unit as described in claim 1, characterized in that: The lower end of the external interface box (12) is slidably connected to the interface group (16) via a sliding groove (15).

6. The off-grid photovoltaic-diesel integrated energy storage unit as described in claim 5, characterized in that: The interface group (16) includes an AC400V three-phase AC input interface, an AC400V three-phase AC output interface and a photovoltaic input interface.

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