Spliced micro-grid optical storage and charging device

Abstract

The utility model discloses a spliced micro-grid optical storage and charging device. The device comprises a base, and a plurality of energy storage modules, a load connection module and a PCS module which are sequentially stacked on the base, wherein the top of the load connecting module, the top of the energy storage module and the top of the base are arranged in a surrounding mode to form a first binding face, a protruding rib is formed above the first binding face in a protruding mode, a first magnetic attraction piece is arranged below the first binding face, and the bottoms of the PCS module, the load connecting module and the energy storage module are provided with second binding faces corresponding to the first binding face. An embedding groove matched with the convex rib is concavely formed in the second binding surface, and a second magnetic attraction piece is arranged below the second binding surface; the protruding ribs are inserted into the embedding grooves so that the adjacent modules can be connected in a sleeved mode, and the positions of the adjacent modules are locked through the magnetic attraction acting force between the first magnetic attraction piece and the second magnetic attraction piece. According to the technical scheme, the adaptability and the expandability of the optical storage and charging device can be improved.

Description

Technical Field

[0001] This application relates to the field of new energy microgrid technology, and in particular to a spliced ​​microgrid photovoltaic-storage-charging device. Background Technology

[0002] With the increasing global demand for clean energy, microgrids, as an important component of distributed energy systems, play a crucial role in improving energy efficiency and enhancing the reliability of energy supply. Integrated photovoltaic-storage-charging microgrid systems combine photovoltaic power generation, energy storage systems, and charging facilities, enabling energy self-sufficiency and efficient utilization, making them particularly suitable for remote areas, islands, and industrial parks.

[0003] Most microgrid photovoltaic-storage-charging devices on the market currently adopt an integrated design, making it difficult to flexibly separate and combine the various functional modules (such as PCS modules, load modules, and energy storage modules). This design approach limits the scalability and adaptability of the device, making it impossible to quickly adjust the capacity and functional configuration of the device according to actual needs. Utility Model Content

[0004] This application provides a modular microgrid photovoltaic-storage-charging device, which aims to solve the problem that the design structure of traditional microgrid photovoltaic-storage-charging devices limits their scalability and adaptability.

[0005] To achieve the above objectives, this application proposes a modular microgrid photovoltaic-storage-charging device. The device includes a base, multiple energy storage modules stacked sequentially on the base, a load connection module stacked above the energy storage modules, and a PCS module stacked on the load connection module. The PCS module is electrically connected to external photovoltaic modules and an external power grid, and is also electrically connected to the energy storage modules and the load connection module, with adjacent energy storage modules being electrically connected to each other.

[0006] The load connection module, the energy storage module, and the base have a first contact surface formed on their top edges, with a raised rib protruding above the first contact surface and a first magnetic attractor below the first contact surface. The PCS module, the load connection module, and the energy storage module have a second contact surface corresponding to the first contact surface at their bottom edges, with a recessed groove matching the raised rib on the second contact surface and a second magnetic attractor below the second contact surface. The raised rib is inserted into the recessed groove to allow adjacent modules to be nested together, and the magnetic attraction between the first and second magnetic attractors locks the positions of the adjacent modules.

[0007] In some embodiments, a flexible seal is further provided in the embedding groove, and the protruding rib presses the flexible seal within the embedding groove.

[0008] In some embodiments, a positioning component is further included, which includes a plurality of positioning posts disposed on the top of the load connection module, the energy storage module and the base, and positioning holes corresponding to the positioning posts are also disposed on the bottom of the PCS module, the load connection module and the energy storage module.

[0009] When there are two positioning posts, the two positioning posts are arranged diagonally on the module.

[0010] In some embodiments, the bottom of the PCS module, the load connection module, and the energy storage module are all provided with plug-in female connectors, and the top of the load connection module and the energy storage module are provided with plug-in male connectors, so as to realize the electrical connection between the modules through the plug-in female connectors and the plug-in male connectors.

[0011] The PCS module and the load connection module are provided with at least two sets of plug-in female connectors and plug-in male connectors. One set is used to establish an electrical connection between the PCS module and the load connection module, and the other set is used to establish an electrical connection between the PCS module and the energy storage module based on the load connection module.

[0012] In some embodiments, the load connection module is a vehicle charger module, and the vehicle charger module is equipped with a charging gun for charging electric vehicles.

[0013] In some embodiments, the energy storage module is provided with a first indicator light, which is used to display the power of the energy storage module, and the load connection module is also provided with a second indicator light on its side wall; the second indicator light is used to indicate the total power of the energy storage module.

[0014] In some embodiments, handle slots are provided on the opposite sidewalls of the PCS module, the load connection module, and the energy storage module.

[0015] In some embodiments, the base is provided with four support legs at its bottom corners, and the support legs are adjustable in height.

[0016] In some embodiments, the bottom of the support leg is provided with a self-locking walking wheel.

[0017] In some embodiments, a fixing plate is provided on the opposite side of the base, the fixing plate being used to fix the device to the wall when it is installed against the wall;

[0018] The fixing plate is provided with locking holes.

[0019] This application proposes a modular microgrid photovoltaic-storage-charging device. The device includes a base, multiple energy storage modules stacked sequentially on the base, a load connection module stacked on top of the energy storage modules, and a PCS module stacked on the load connection module. The PCS module is electrically connected to external photovoltaic modules and the external power grid, and is also electrically connected to the energy storage module and the load connection module, with adjacent energy storage modules being electrically connected to each other. A first bonding surface is formed on the top of the load connection module, the energy storage module, and the base, with a raised rib protruding above the first bonding surface and a first magnetic attractor below the first bonding surface. A second bonding surface corresponding to the first bonding surface is formed on the bottom of the PCS module, the load connection module, and the energy storage module, with a recessed groove matching the raised rib on the second bonding surface and a second magnetic attractor below the second bonding surface. The raised rib is inserted into the recessed groove to allow adjacent modules to be nested together, and the magnetic attraction between the first and second magnetic attractors locks the positions of the adjacent modules. In the technical solution of this application, the optical energy storage and charging device consists of a base, multiple energy storage modules, a load connection module, and a PCS module. Based on the cooperation between the protruding ribs and the front slot, as well as the magnetic attraction between the first magnetic component and the second magnetic component, adjacent modules can be precisely and stably connected together, and can also be easily unlocked, improving the adaptability of the device. In addition, users can flexibly stack modules according to actual space and needs to form device configurations of different heights and capacities, easily realizing device expansion. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application 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 of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a spliced ​​microgrid photovoltaic energy storage and charging device according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the base according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the top structure of an energy storage module according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the bottom structure of an energy storage module according to an embodiment of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that, unless otherwise stated or limited, all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] It should also be noted that, unless otherwise stated or limited, when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be an intervening element present. When an element is referred to as "connected to" another element, it may be directly connected to the other element or there may be an intervening element present.

[0028] Furthermore, unless otherwise stated or limited, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0029] See Figure 1 , Figure 3 and Figure 4As shown, this application proposes a modular microgrid photovoltaic-storage-charging device 100. The device includes a base 10, multiple energy storage modules 20 stacked sequentially on the base 10, a load connection module 30 stacked on top of the energy storage modules 20, and a PCS module 40 stacked on the load connection module 30. The base 10 serves as the supporting foundation for the entire device, ensuring its stability and load-bearing capacity. The energy storage modules 20 are used to store electrical energy and can be implemented as energy storage batteries. The load connection module 30 is responsible for connecting to the load to realize the transmission and distribution of electrical energy. The PCS module 40 (power conversion system) is stacked on the load connection module 30 and is responsible for converting electrical energy. The PCS module 40 is electrically connected to external photovoltaic modules and the external power grid, and also maintains an electrical connection with the energy storage modules 20 and the load connection module 30. Furthermore, the working process of the photovoltaic-storage-charging device proposed in this application is as follows:

[0030] When the photovoltaic modules generate sufficient power, the power generated by the photovoltaic modules passes through the PCS module 40 and then through the load connection module 30 to power the load and simultaneously charge the energy storage module 20. Typically, a combiner box is installed between the photovoltaic modules and the PCS cabinet connection circuit. The DC circuit breaker in the combiner box prevents faults such as excessive current and short circuits, protecting the photovoltaic modules and the entire photovoltaic power generation system from damage. When the power generated by the photovoltaic modules is insufficient, the energy storage module 20 discharges and then passes through the PCS module 40 to power the load through the load connection module 30. In cases where the power generated by both the photovoltaic modules and the energy storage module 20 is insufficient, the grid generates power to power the load and simultaneously charge the energy storage module 20.

[0031] To achieve connection between modules, a first mating surface 21 is formed on the top of the load connection module, energy storage module, and base, and a raised rib 22 is formed above the first mating surface 21. A first magnetic attractor (located inside, not shown in the figure) is provided below the first mating surface 21. A second mating surface 26 corresponding to the first mating surface 21 is provided at the bottom of the PCS module, load connection module, and energy storage module. An embedding groove 27 matching the raised rib 22 is formed in the second mating surface 26, and a second magnetic attractor (located inside, not shown in the figure) is provided below the second mating surface 26. The raised rib 22 is inserted into the embedding groove 27 to allow adjacent modules to be nested together, and the position between adjacent modules is locked by the magnetic attraction between the first and second magnetic attractors.

[0032] This structural design employs a dual approach of physical engagement and magnetic fixation to achieve rapid positioning and stable connection between modules. Specifically, a raised rib 22 is provided on the first mating surface 21, and the embedding groove 27 on the second mating surface 26 precisely matches the raised rib 22, ensuring the unique orientation of the modules during installation. Furthermore, the first and second magnetic components are respectively embedded below the first mating surface 21 and the second mating surface 26. Through the design of the magnetic pole orientation, they automatically attract upon contact between the modules, achieving a stable connection between them through magnetic force.

[0033] Preferably, the first and second magnetic attractors are made of neodymium iron boron lamp high magnetic energy product material, which is robust, has strong magnetic force and is small in size; in the layout, the first and second magnetic attractors need to be opposite poles (such as N and N poles) to ensure that the maximum attraction is generated when they come into contact.

[0034] In this application, the device adopts a modular design, with each module capable of independent manufacturing and assembly, facilitating production, transportation, and maintenance. Furthermore, the modules are detachably connected, allowing users to easily add, remove, or replace modules to adapt to different power demands. For example, the number of energy storage modules 20 can be increased or decreased according to power requirements. Therefore, the photovoltaic-energy storage-charging device proposed in this application has high adaptability and scalability. In addition, this stacked design improves the overall compactness of the device, and the vertical stacking makes it more efficient in space utilization.

[0035] In some embodiments, a flexible seal (not shown in the drawings) is also provided within the embedding groove 27, and the raised rib 22 compresses the flexible seal within the embedding groove 27. Understandably, the seal undergoes elastic deformation under the compression of the raised rib 22, filling the gap between the embedding groove 27 and the raised rib 22, preventing moisture, dust, and other contaminants from entering the module interior, significantly improving the waterproofness, dustproofness, and environmental adaptability of the modular connection. The flexible seal can be made of materials such as rubber or silicone.

[0036] See Figure 3 and Figure 4 As shown, in some embodiments, the device further includes a positioning component, which includes a plurality of positioning posts 23 disposed on the top of the load connection module 30, the energy storage module 20 and the base 10, and positioning holes 29 corresponding to the positioning posts 23 opened on the bottom of the PCS module 40, the load connection module 30 and the energy storage module 20.

[0037] In this embodiment, a positioning component is provided to ensure that the connection between modules is precise and stable through the synergistic effect of the positioning component and the locking mechanism, thereby improving the performance and reliability of the entire device.

[0038] The cooperation between the positioning pins 23 and the positioning holes 29 reduces the problem of loose or unstable connections caused by positional deviations. At the same time, the design of the positioning components makes the module installation process simpler and faster. Users only need to align the module with the positioning pins 23 and insert it into the positioning holes 29 to achieve a quick connection between modules. For example, when there are two positioning pins 23, the two positioning pins 23 are diagonally arranged on the module, which can more effectively limit the rotation and offset of the module in the plane, achieving more accurate positioning.

[0039] See Figure 3 and Figure 4 As shown, in some embodiments, the bottom of the PCS module 40, the load connection module 30, and the energy storage module 20 are all provided with plug-in female connectors 28, and the top of the load connection module 30 and the energy storage module 20 are provided with plug-in male connectors 24, so as to realize the electrical connection between the modules through the plug-in female connectors 28 and the plug-in male connectors 24; wherein, at least two sets of plug-in female connectors 28 and plug-in male connectors 24 are provided between the PCS module 40 and the load connection module 30, one set is used to establish the electrical connection between the PCS module 40 and the load connection module 30, and the other set is used to establish the electrical connection between the PCS module 40 and the energy storage module 20 based on the load connection module 30.

[0040] In this embodiment, the use of plug-in male connector 24 and plug-in female connector 28 aims to achieve fast and reliable electrical connection between modules through a plug-in connection mechanism. The plug-in male connector 24 and plug-in female connector 28 in each module are electrically connected via cables, making the connection and disconnection between modules very convenient. Users can achieve electrical connection or disconnection between modules simply by moving them relative to each other.

[0041] The multiple plug-in connections make the electrical connections between modules more flexible and efficient. In this embodiment, the load connection module 30 is used as an intermediary to facilitate the electrical connection between the PCS module 40 and multiple energy storage modules 20.

[0042] See Figure 1 As shown, in some embodiments, the load connection module 30 is a vehicle charging module, and the vehicle charging module is equipped with a charging gun 310 for charging electric vehicles.

[0043] As one application of the load connection module 30, the vehicle charging module's core function is to provide charging services for electric vehicles. The vehicle charging module is equipped with a charging gun 310, which can be connected to the internal circuitry of the module via a cable, thereby transferring electrical energy to the electric vehicle's battery.

[0044] In some other embodiments, the load connection module 30 can also provide power to other devices, such as smart home devices and power banks. Its versatility greatly expands application scenarios and enhances the overall system's practicality and convenience.

[0045] Furthermore, the energy storage module 20 is equipped with a first indicator light 210, which displays the power level of the energy storage module 20, allowing users to monitor its power status at any time and facilitate timely charging or adjustment of power usage plans. In the spliced ​​microgrid photovoltaic energy storage and charging device 100, the power status of multiple energy storage modules 20 can be displayed through their respective first indicator lights 210, enabling users to comprehensively understand the power distribution of the system. A second indicator light 320 is also provided on the side wall of the load connection module 30; the second indicator light 320 indicates the total power level of the energy storage modules 20. By observing the status of the second indicator light 320, users can quickly understand the total power level of all energy storage modules 20 in the system, thereby judging the overall energy storage capacity of the system. For example, the indicator light is solid green when the power level is sufficient, yellow when the power level is moderate, and red and flashing when the power level is low. By observing the on / off state, color change, or flashing frequency of the indicator light, users can intuitively understand the remaining power level of the energy storage module 20.

[0046] In some embodiments, handle slots 25 are provided on the opposite sidewalls of the PCS module 40, the load connection module 30, and the energy storage module 20. The handle slots 25 allow users to easily grasp the module and move it from one position to another, thereby improving operational convenience and efficiency.

[0047] See Figure 1 and Figure 2 As shown, in some embodiments, the base 10 is provided with four support legs 11 at its bottom corners, and the support legs 11 are adjustable in height. This allows it to flexibly adapt to various uneven ground environments. By adjusting the height of the support legs 11, it can be ensured that the base 10 and the entire device remain horizontal and stable, avoiding tilting or shaking caused by uneven ground.

[0048] Furthermore, the bottom of the support leg 11 is provided with a self-locking wheel 12. The wheel 12 allows the device to be easily moved between different locations, and the self-locking function of the wheel 12 allows the wheel 12 to be fixed after the device is moved to a designated position, preventing the device from tipping over or being damaged due to accidental movement. For example, the wheel 12 can be a fuma wheel.

[0049] In addition, a fixing plate 13 is provided on the opposite side of the base 10. The fixing plate 13 is used to fix the device to the wall when it is installed against the wall; the fixing plate 13 is provided with locking holes. The fixing plate 13 ensures that the device is fixedly connected to the wall when it is installed against the wall, preventing it from tipping over or shifting due to external forces (such as wind, vibration, etc.). The locking holes on the fixing plate 13 are shaped to cooperate with fasteners (such as expansion bolts, screws, etc.) on the wall.

[0050] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A spliced micro-grid optical storage and charging device, characterized in that, The energy storage device comprises a base, a plurality of energy storage modules stacked on the base, a load connection module stacked on the energy storage modules, and a PCS module stacked on the load connection module; the PCS module is electrically connected with an external photovoltaic assembly and an external power grid, and the PCS module is electrically connected with the energy storage modules and the load connection module, and two adjacent energy storage modules are electrically connected with each other. The top of the load connection module, the energy storage module and the base is provided with a first fitting surface, a raised rib is formed above the first fitting surface, and a first magnetic attraction element is arranged below the first fitting surface; the bottom of the PCS module, the load connection module and the energy storage module is provided with a second fitting surface corresponding to the first fitting surface, an embedding groove matched with the raised rib is formed in the second fitting surface, and a second magnetic attraction element is arranged below the second fitting surface; the raised rib is inserted into the embedding groove to enable the adjacent modules to be sleeved, and the position between the adjacent modules is locked by the magnetic attraction force between the first magnetic attraction element and the second magnetic attraction element.

2. The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, A flexible sealing element is arranged in the embedding groove, and the flexible sealing element is extruded by the raised rib in the embedding groove. 3.The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, A positioning assembly is further included, which comprises a plurality of positioning columns arranged on the top of the load connection module, the energy storage module and the base, and a plurality of positioning holes corresponding to the positioning columns are arranged on the bottom of the PCS module, the load connection module and the energy storage module. When the number of the positioning columns is two, the two positioning columns are diagonally arranged on the module.

4. The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, The bottom of the PCS module, the load connection module and the energy storage module is provided with a female plug connection, and the top of the load connection module and the energy storage module is provided with a male plug connection, so as to realize the electrical connection between the modules through the female plug connection and the male plug connection. At least two groups of the female plug connection and the male plug connection are arranged between the PCS module and the load connection module, one group of which is used to establish the electrical connection between the PCS module and the load connection module, and the other group of which is used to establish the electrical connection between the PCS module and the energy storage module based on the load connection module.

5. The spliced micro-grid optical storage and charging device according to claim 4, characterized in that, The load connection module is a vehicle charging module, and a charging gun for charging an electric vehicle is arranged on the vehicle charging module. 6.The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, A first indicator lamp is arranged on the energy storage module, which is used to display the power of the energy storage module, and a second indicator lamp is further arranged on the side wall of the load connection module, which is used to indicate the total power of the energy storage module. 7.The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, A handle groove is arranged on the opposite side walls of the PCS module, the load connection module and the energy storage module. 8.The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, Four feet are arranged on the bottom of the base, and the feet can be adjusted in height. 9.The spliced micro-grid optical storage and charging device according to claim 8, characterized in that, A walking wheel with self-locking function is arranged on the bottom of the foot. 10.The spliced micro-grid optical storage and charging device according to claim 8, characterized in that, Fixed plates are arranged on the opposite sides of the base, which are used to be fixed to a wall when the device is arranged against the wall. The fixing plate is provided with locking holes.

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