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, the PCS module is electrically connected with an external photovoltaic module and an external power grid, 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; protruding ribs are formed in the positions, close to the edges, of the tops of the load connecting module, the energy storage module and the base in a surrounding mode, first locking parts are arranged on the protruding ribs, sleeving cavities are formed in the bottoms of the PCS module, the load connecting module and the energy storage module in a concave mode, and second locking parts corresponding to the first locking parts are arranged on the cavity walls of the sleeving cavities. The protruding ribs are inserted into and attached to the sleeving cavities so that the adjacent modules can be connected in a sleeving mode, and after the first locking parts and the second locking parts are locked or loosened through the locking pieces, the positions between the adjacent modules can be locked or unlocked. 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 raised ribs formed near their top edges, and the raised ribs are provided with first locking parts. The bottoms of the PCS module, the load connection module, and the energy storage module are recessed to form socket cavities, and the cavity walls of the socket cavities are provided with second locking parts corresponding to the first locking parts. The raised ribs are inserted into and fit against the socket cavities to allow adjacent modules to be socketed, and the first locking parts and the second locking parts are locked or released by locking members to lock or unlock the position between adjacent modules.

[0007] In some embodiments, a positioning component is further included, comprising 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 disposed on the bottom of the PCS module, the load connection module and the energy storage module.

[0008] In some embodiments, when there are two positioning posts, the two positioning posts are arranged diagonally on the module.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] In some embodiments, handle slots are provided on the opposite sidewalls of the PCS module, the load connection module, and the energy storage module.

[0014] In some embodiments, the base is provided with four support legs at its bottom corners, and the support legs are adjustable in height.

[0015] In some embodiments, the bottom of the support leg is provided with a self-locking walking wheel.

[0016] 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;

[0017] The fixing plate is provided with locking holes.

[0018] 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 the 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. The top of the load connection module, energy storage modules, and base has raised ribs near the edge, each with a first locking part. The bottom of the PCS module, load connection module, and energy storage module has recessed sockets, with second locking parts corresponding to the first locking parts on the cavity walls. The raised ribs are inserted into and fit into the sockets to connect adjacent modules, and the positions of adjacent modules are locked or unlocked by locking or releasing the first and second locking parts. 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 locking mechanism between the protruding ribs and the socket cavity, adjacent modules can be securely connected together and can be easily unlocked by the unlocking component, 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

[0019] 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:

[0020] 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;

[0021] Figure 2 This is a schematic diagram of the structure of the base according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the top structure of an energy storage module according to an embodiment of this application;

[0023] 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

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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:

[0029] 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.

[0030] To achieve connection between modules, a raised rib 21 is formed near the edge of the top of the load connection module 30, the energy storage module 20, and the base 10. A first locking part 22 is provided on the raised rib 21. A socket cavity is formed in the bottom of the PCS module 40, the load connection module 30, and the energy storage module 20. A second locking part 27 corresponding to the first locking part 22 is opened on the cavity wall of the socket cavity. Then, the raised rib 21 is inserted into and fits the socket cavity to make adjacent modules fit together. The first locking part 22 and the second locking part 27 are locked or released by the locking member to lock or unlock the position between adjacent modules.

[0031] The device employs a modular design, allowing each module to be manufactured and assembled independently, facilitating production, transportation, and maintenance. Furthermore, the modules are detachably connected, enabling 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 possesses 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.

[0032] Specifically, when adjacent modules need to be connected together, the protruding rib 21 is inserted and fitted into the socket cavity to ensure initial positioning and stability between the modules. Then, the locking mechanism is used to lock the first locking part 22 and the second locking part 27 together to ensure stability between the adjacent modules. When it is necessary to disassemble or adjust the modules, the steps are reversed.

[0033] Furthermore, the first locking part 22 and the second locking part 27 can be corresponding threaded holes, and the locking element is a screw or bolt, which is easy to operate and firmly reliable; and the first locking part 22 and the second locking part 27 can also be a snap-fit ​​structure, which realizes quick connection and disassembly through the engagement and disassembly of the snap-fit, greatly improving the convenience of operation; wherein, the snap-fit ​​structure can be a snap-fit ​​rib formed by wrapping around the outer side wall of the protruding rib 21, and a snap-fit ​​groove is provided on the inner side wall of the sleeve cavity corresponding to the snap-fit ​​rib. The snap-fit ​​rib cooperates with the snap-fit ​​groove on the inner wall of the sleeve cavity to realize the snap-fit ​​fixation between modules.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] See Figure 3 and Figure 4As 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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 above 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; The top of the load connection module, the energy storage module and the base is provided with a raised rib near the edge ring, the raised rib is provided with a first locking part, the bottom of the PCS module, the load connection module and the energy storage module is provided with a sleeve cavity, and the cavity wall of the sleeve cavity is provided with a second locking part corresponding to the first locking part; then the raised rib is inserted into and matched with the sleeve cavity to make the adjacent modules sleeved, and the first locking part and the second locking part are locked or unlocked by the locking piece to lock or unlock the position between the adjacent modules.

2. The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, The positioning assembly 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 arranged on the bottom of the PCS module, the load connection module and the energy storage module corresponding to the positioning columns.

3. The spliced micro-grid optical storage and charging device according to claim 2, characterized in that, 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 plug-in connection female head, and the top of the load connection module and the energy storage module is provided with a plug-in connection male head, so as to realize the electrical connection between the modules through the plug-in connection female head and the plug-in connection male head. At least two groups of the plug-in connection female head and the plug-in connection male head 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 the vehicle charging module is provided with a charging gun for charging an electric vehicle. 6.The spliced micro-grid optical storage and charging device according to claim 1, characterized in that, A first indicator light is arranged on the energy storage module, which is used to display the power of the energy storage module, and a second indicator light is 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 legs are arranged at the bottom corners of the base, and the legs can be adjusted in lifting. 9.The spliced micro-grid optical storage and charging device according to claim 8, characterized in that, The bottom of the leg is provided with a walking wheel with a self-locking function. 10.The spliced micro-grid optical storage and charging device according to claim 7, characterized in that, Fixed plates are arranged on the opposite sides of the base, which are used to be fixed with a wall body when the device is arranged against the wall body. A locking hole is arranged on the fixed plate.

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