Household and storage integrated device for micro-grid

Abstract

The utility model discloses a household and storage integrated device for a micro-grid. The device comprises a cabinet body, a PCS module and an energy storage module, wherein the PCS module and the energy storage module are arranged in the cabinet body; the PCS module is electrically connected with an external photovoltaic module and an external power grid, and the PCS module is electrically connected with the energy storage module; wherein the cabinet body comprises a main body, supporting legs and hanging pieces, the supporting legs are arranged corresponding to the four corners of the bottom of the main body, the number of the hanging pieces is at least four, the four hanging pieces are arranged on the main body at intervals in the vertical direction in pairs, and the two hanging pieces in each group are oppositely arranged on the back face of the main body. The micro-grid household storage integrated device provided by the technical scheme of the utility model can be vertically placed on the ground through the supporting legs, and can also be hung on the wall through the hanging pieces. The flexible installation mode enables a user to select a proper installation mode according to the family space layout and actual requirements, and the space resources are utilized to the maximum extent.

Description

Technical Field

[0001] This application relates to the field of new energy microgrid technology, and in particular to a microgrid household storage integrated device. Background Technology

[0002] With the transformation of the global energy structure and the widespread application of renewable energy, residential energy storage systems (residential storage) are gradually becoming more common as a key technology for improving household energy self-sufficiency and optimizing energy efficiency. Traditional residential storage devices often have limited installation methods, mainly confined to ground placement, which restricts their application scenarios and installation flexibility. This is particularly inconvenient in space-constrained home environments or locations where saving floor space is crucial. Utility Model Content

[0003] This application provides a microgrid household storage integrated device, which aims to solve the problem that traditional household storage devices have relatively limited installation methods.

[0004] To achieve the above objectives, this application proposes a microgrid integrated household energy storage device. The device includes a cabinet and a PCS module and an energy storage module disposed within the cabinet; the PCS module is electrically connected to external photovoltaic modules and an external power grid, and the PCS module is electrically connected to the energy storage module;

[0005] The cabinet includes a main body, legs, and mounting brackets. The legs are positioned at the four corners of the bottom of the main body. There are at least four mounting brackets, which are arranged in pairs at vertical intervals on the main body, with the two mounting brackets in each pair positioned opposite each other on the back of the main body.

[0006] In some embodiments, the mounting element is a mounting plate detachably connected to the back of the main body. The mounting plate has mounting holes, which include a first hole and a second hole that are connected vertically from top to bottom. The diameter of the first hole is smaller than the diameter of the second hole.

[0007] In some embodiments, the mounting plate includes a connecting portion, a transition portion, and a mounting portion; the connecting portion is used to connect to the main body; one end of the transition portion is connected to the connecting portion, and the other end extends perpendicular to the back side and away from the main body; the mounting portion is connected to the other end of the transition portion and is parallel to the connecting portion, and the mounting hole is provided on the mounting portion.

[0008] In some embodiments, the hook portion extends relative to the projected coverage area of ​​the back of the body, so that the hook portion is exposed on both sides of the body.

[0009] In some embodiments, handles are embedded on two opposite sides of the main body to facilitate user movement.

[0010] In some embodiments, the cabinet is provided with a connection terminal that is electrically connected to the energy storage module. The connection terminal includes a positive terminal and a negative terminal for connecting an external energy storage unit to achieve energy storage capacity expansion.

[0011] In some embodiments, the device further includes a heat dissipation box, and the PCS module is disposed inside the heat dissipation box; the heat dissipation box is equipped with a fan to force convection heat dissipation through the fan, thereby ensuring the efficient operation of the PCS module;

[0012] The cabinet has an air inlet grille and an air outlet grille respectively on its opposite sides, corresponding to the heat dissipation box.

[0013] In some embodiments, a partition is provided below the heat dissipation box, and the energy storage module is disposed below the partition; the partition is provided with multiple through holes to allow the heat generated by the energy storage module to flow to the air outlet grille.

[0014] In some embodiments, the device further includes a BMS board disposed within the cabinet, the BMS board being connected to the energy storage module via wires for real-time monitoring of the energy storage module's status; and the BMS board being communicatively connected to the PCS module.

[0015] In some embodiments, the device further includes a wireless communication module disposed on the cabinet, the wireless communication module being connected to the PCS module for communicating with the outside and realizing data transmission.

[0016] This application proposes a microgrid-based integrated energy storage device. The device includes a cabinet and a PCS module and an energy storage module housed within the cabinet. The PCS module is electrically connected to external photovoltaic modules and the external power grid, and also electrically connected to the energy storage module. The cabinet includes a main body, legs, and mounting brackets. The legs are positioned at the four corners of the main body's bottom. At least four mounting brackets are provided, arranged in pairs vertically at intervals on the main body, with two brackets in each pair positioned opposite each other on the back of the main body. This microgrid-based integrated energy storage device can be placed vertically on the ground using the legs, or suspended from a wall using the mounting brackets. This flexible installation method allows users to choose a suitable installation method based on their home space layout and actual needs, maximizing the use of space resources. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a schematic diagram of the structure of a microgrid integrated household energy storage device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a connector according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of a microgrid integrated household energy storage device according to an embodiment of this application after removing the backplate. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] See Figure 1 and Figure 2 As shown, this application proposes a microgrid-based integrated energy storage device 100. The device includes a cabinet 10 and a PCS module (Power Conversion System, energy storage converter) (not shown in the attached drawings) and an energy storage module (not shown in the attached drawings) disposed within the cabinet 10. The cabinet 10 is equipped with corresponding access terminals, such as a photovoltaic access terminal 111, a grid access terminal 112, and a load access terminal 113. The PCS module is electrically connected to external photovoltaic modules through the photovoltaic access terminal 111, electrically connected to the external power grid through the grid access terminal 112, and electrically connected to the electrical load through the load access terminal 113. The PCS module is electrically connected to the energy storage module. It is understood that the components in this application represent a conventional setup for a microgrid-based energy storage device; their electrical connection structure and control principle are not detailed here, but are intended to achieve:

[0026] When the power generated by the batteries and photovoltaics is insufficient, the grid directly supplies power to the load (by controlling the circuit closure between the grid and the load through the controller in the PCS module). When the power generated by the photovoltaic modules is sufficient, the photovoltaic modules supply power to the energy storage module and the load through the PCS module; this process is ignored when the energy storage module is fully charged. Furthermore, when the power generated by the photovoltaic modules is insufficient but the power generated by the energy storage module is sufficient, the batteries supply power to the load through the PCS module. This achieves efficient management and utilization of power between photovoltaic power generation, energy storage, and the grid.

[0027] The cabinet 10 is equipped with a display screen 15 to show the current working mode and the power status of the energy storage module. Users can monitor and adjust the operating strategy in real time through the interface.

[0028] Furthermore, the cabinet 10 includes a main body, legs 12, and mounting brackets 13. The legs 12 are set at the four corners of the bottom of the main body to support the entire cabinet 10 and ensure the stability and balance of the cabinet 10 on the ground. The mounting brackets 13 are used to hang the cabinet 10 on the wall to facilitate the installation and removal of the cabinet 10. The number of mounting brackets 13 is at least four. The four mounting brackets 13 are arranged in pairs at intervals in the vertical direction on the main body, and the two mounting brackets 13 in each pair are arranged opposite each other on the back of the main body, thereby ensuring the firmness and safety of the cabinet 10 after it is hung on the wall.

[0029] In summary, the microgrid household energy storage integrated device 100 proposed in this application not only meets the requirements of efficient use of electrical energy, but also allows users to choose the appropriate installation method according to their home space layout and actual needs, thereby maximizing the use of space resources.

[0030] See Figures 1-3 As shown, in some embodiments, the mounting bracket 13 is a mounting plate that is detachably connected to the back of the main body. The mounting plate has mounting holes 130. The mounting holes 130 include a first hole and a second hole that are connected vertically from top to bottom. The diameter of the first hole is smaller than the diameter of the second hole.

[0031] In this embodiment, the mounting plate can be connected to the back of the main body by bolts, clips, or other means, and is made of high-hardness materials such as steel plates or aluminum alloys to ensure its load-bearing capacity and service life. The mounting plate has mounting holes 130, and the diameter of the first hole is smaller than that of the second hole, giving the mounting member 13 better positioning and stability during connection. For example, during installation, the fastener (such as a bolt) can be initially positioned by passing it through the first hole, and then tightened through the second hole, thereby ensuring a firm and reliable connection between the mounting member 13 and the supporting structure.

[0032] Furthermore, the mounting plate includes a connecting portion 131, a transition portion 132, and a mounting portion 133; the connecting portion 131 is used to connect to the main body; one end of the transition portion 132 is connected to the connecting portion 131, and the other end extends perpendicular to the back and away from the main body; the mounting portion 133 is connected to the other end of the transition portion 132 and is parallel to the connecting portion 131, and a mounting hole 130 is provided on the mounting portion 133. This allows the device to maintain a certain spatial distance from the wall when connected to the wall via the mounting plate, preventing friction and wear caused by direct contact between the cabinet 10 and the wall surface, while also facilitating ventilation and heat dissipation.

[0033] Furthermore, the projection area of ​​the mounting portion 133 relative to the back of the main body is covered, so that the mounting portion 133 is exposed on both sides of the main body. In this way, the mounting portion 133 is easier to operate and fix during installation, because its exposure makes it easier for installers to see and touch, thereby improving installation efficiency and accuracy.

[0034] In addition, handles 14 are embedded on two opposite sides of the main body, allowing users to apply force from both sides when moving the cabinet 10. This is suitable for two people to operate simultaneously, improving moving efficiency. The handles 14 adopt an embedded design, which is tightly integrated with the main body of the cabinet 10. This not only ensures the stability of the handles 14, but also avoids scratches or collisions that may be caused by the handles 14 protruding from the surface of the cabinet 10, thus increasing safety during use.

[0035] Furthermore, the handle 14 is made of non-slip material and has an ergonomic design, which makes the user more comfortable during the carrying process and improves the user experience.

[0036] See Figure 2 As shown, in some embodiments, the device also includes a heat dissipation box 17, and the PCS module is disposed inside the heat dissipation box 17; the heat dissipation box 17 is provided with a fan to force convection heat dissipation through the fan to ensure efficient operation of the PCS module; wherein, the opposite sides of the cabinet 10 are respectively provided with an air inlet grille 115 and an air outlet grille 116 corresponding to the heat dissipation box 17.

[0037] Specifically, the fan operation creates forced convection within the cooling box 17. Cool air enters through the air inlet grille 115, absorbs heat as it passes through the PCS module, and then becomes hot air, exiting through the air outlet grille 116. Through continuous air circulation, the heat generated by the PCS module is rapidly carried away, thereby maintaining the PCS module at a lower temperature and improving its efficiency and stability.

[0038] The heat dissipation box 17 has a partition 18 located below it, and the energy storage module is also located below the partition 18. This structurally separates the energy storage module from the PCS module, reducing mutual interference. Furthermore, the PCS module and energy storage module are arranged vertically within the cabinet, helping to reduce lateral space occupation and resulting in a slimmer overall design. Multiple through holes 181 are further provided on the partition 18, allowing the heat generated by the energy storage module to be directly transferred upwards through these holes, combining with the airflow generated by the heat dissipation box 17 for efficient heat dissipation.

[0039] In addition, the cabinet 10 is equipped with a connection terminal 19 that is electrically connected to the energy storage module. The connection terminal 19 is located on the side of the cabinet 10 and is stably connected to the internal circuit of the energy storage module. The connection terminal 19 includes a positive terminal and a negative terminal. Through the connection terminal, users can easily connect external energy storage units and easily expand energy storage capacity without making large-scale modifications to the original system, thereby improving the adaptability and flexibility of the system.

[0040] Both the energy storage module and the energy storage unit are battery packs. The energy storage module can be connected in parallel with the energy storage unit to expand the capacity, with the positive terminals of the battery packs connected to each other and the negative terminals connected to each other, thereby increasing the total capacity of the battery pack; or the energy storage module can be connected in series with the energy storage unit to expand the capacity, by connecting multiple battery packs in sequence to form a battery chain, thereby increasing the total voltage of the battery pack.

[0041] And such as Figure 1 As shown, the cabinet 10 is further equipped with a power indicator light 114 to display the current power status of the energy storage module, allowing users to monitor the power information in real time through the display status of the indicator light 114. For example, the current power information of the energy storage module can be indicated by a combination of color and flashing frequency of the indicator light 114.

[0042] like Figure 2 As shown, and in some embodiments, the device also includes a BMS board 20 disposed within the cabinet 10. The BMS board 20 is connected to the energy storage module via wires and is used to monitor the status of the energy storage module in real time. The BMS board 20 is also communicatively connected to the PCS module.

[0043] Understandably, the BMS board 20 (Battery Management System board) is connected to the energy storage module via wires, allowing it to acquire key parameters such as voltage, current, and temperature of the energy storage module in real time, ensuring that the energy storage module operates within a safe and efficient range. The BMS board 20 communicates with the PCS module, enabling real-time data sharing and interaction. The BMS board 20 sends the status information of the energy storage module to the PCS module, which can then adjust its charging and discharging strategies based on this information to optimize the performance of the energy storage system.

[0044] Furthermore, the device also includes a wireless communication module 16 mounted on the cabinet 10. The wireless communication module 16 connects to the PCS module for communication with external systems and data transmission. This allows users to remotely monitor the operating status of the energy storage system, including key parameters such as power level, charging / discharging status, and equipment temperature. The wireless communication module 16 supports multiple communication protocols, such as Wi-Fi, Bluetooth, ZigBee, and 4G / 5G, facilitating connection and communication with other smart devices or systems.

[0045] 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 micro-grid home storage integrated device, characterized by, The device comprises a cabinet body, a PCS module and an energy storage module arranged in the cabinet body; 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 module; The cabinet body comprises a main body, supporting legs and hanging pieces; the supporting legs are arranged at the four corners of the bottom of the main body; the number of the hanging pieces is at least four; two of the hanging pieces in each group are arranged on the main body in the vertical direction; and the two hanging pieces in each group are arranged opposite to each other on the back of the main body.

2. The microgrid home storage integrated device according to claim 1, characterized by, The hanging piece is a hanging plate which is detachably connected to the back of the main body; the hanging plate is provided with a hanging hole; the hanging hole comprises a first hole and a second hole which are connected in the vertical direction from top to bottom; the diameter of the first hole is smaller than that of the second hole.

3. The microgrid home storage integrated device according to claim 2, characterized by, The hanging plate comprises a connecting part, a transition part and a hanging part; the connecting part is used for connecting the main body; one end of the transition part is connected to the connecting part, and the other end extends perpendicularly to the back and away from the main body; the hanging part is connected to the other end of the transition part and is parallel to the connecting part; and the hanging hole is arranged on the hanging part.

4. The microgrid home storage integrated device according to claim 3, characterized by, The projection coverage area of the hanging part extending out of the back of the main body is such that the hanging part is exposed on both sides of the main body.

5. The microgrid home storage integrated device of claim 1, wherein, Handles are arranged on the opposite sides of the main body to facilitate user carrying and moving.

6. The microgrid home storage integrated device of claim 1, wherein, The device further comprises a heat dissipation fan box in which the PCS module is arranged; the heat dissipation fan box is provided with a fan to forcibly convection heat dissipation through the fan to ensure the operation of the PCS module. Corresponding to the heat dissipation fan box, the cabinet body is provided with an air inlet grille and an air outlet grille on the opposite sides.

7. The microgrid home storage integrated device according to claim 6, characterized by, A partition plate is arranged below the heat dissipation fan box, and the energy storage module is arranged below the partition plate; a plurality of through holes are arranged on the partition plate to realize the flow of heat generated by the energy storage module to the air outlet grille. 8.The micro-grid home storage integrated device of claim 7, wherein, The cabinet body is provided with a connection terminal electrically connected with the energy storage module; the connection terminal comprises a positive terminal and a negative terminal, and is used for externally connecting an energy storage unit to realize energy storage expansion.

9. The microgrid home storage integrated device of claim 1, wherein, The device further comprises a BMS board arranged in the cabinet body; the BMS board is connected with the energy storage module through a wire to monitor the state of the energy storage module in real time; and the BMS board is in communication connection with the PCS module.

10. The microgrid home storage integrated device of claim 9, wherein, The device further comprises a wireless communication module arranged on the cabinet body; the wireless communication module is connected with the PCS module to communicate with the outside and realize data transmission.

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